Vehicle report

2009 MERCEDES BENZ GL450

Service bulletins

49 bulletins

Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.

LI82.62-P-078631

Service Bulletin/Repair Instructions

Complaint Clanking noise from the area of the speakers in the doors. Cause Under analysis. Remedy To narrow down the cause, first of all remove the door trim. • If the noise continues to occur even with the door trim removed, then continue the diagnosis working towards the speaker and if necessary, create a TIPS case with an informative video as an attachment. Information: Please refer to this document in the warranty claim and, after completing diagnosis, select the damage code corresponding to the component part that caused the problem. • If the noise stops when the door trim is removed, please proceed in accordance with LI72.10-P-067691. Information: In this case, do not use a damage code for the speakers in the warranty claim!

LI35.30-P-058566

Service Bulletin/Repair Instructions

Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The noise is heard once in each instance when changing direction of travel. Note: Sound file in attachment Cause If the complaint is eliminated by experimentally loosening the outboard collar nut (by 1 turn), the problem is due to cracking of the microweld between the wheel bearing inner race and the joint housing of the side shaft. Note: The collar nut must always be replaced after being loosened. See also LI33.20-P-078406 Remedy Coat contact surface of side shaft with wheel bearing with Molykote paint. To do this, proceed as follows: 1. Remove side shafts 2. Clean contact surface A (see image file in attachment "Outer joint housing before") before coating with Molykote, using "spirit" (free of dust and grease) 3. Coat contact surface A (see image file in attachment "Outer joint housing after") with Molykote and leave to dry for "one hour" in removed condition 4. Reinstall side shafts Note: Before using the antifriction coating (Molykote), stir it or shake it thoroughly for (at least 1 minute).

LI82.10-P-078896

Service Bulletin/Repair Instructions

Complaint Headlamps leaking or fogged Cause The fogging of the headlamp is a natural phenomenon which can occur under certain climatic conditions. In contrast to a leaky headlamp, physical fogging does not result in a technical impairment of the headlamp. A leak test must be performed to determine if physical fogging exists or if the headlamp is leaky. Remedy Check for external damage: You can identify a damaged headlamp in the following way: For headlamps with a closed system 1. Check the headlamps for any external damage and check also for correct seating of the Gore-diaphragm/correct latching of the cover caps. 2. If the headlamp exhibits any external damage, replace the headlamp. For headlamps with an open system 1. Check the headlamps for any external damage and seal off the vent, then make sure the cover caps are latched correctly into place. 2. If the headlamp exhibits any external damage, replace the headlamp. Note: External damage to the headlamp does not present a warranty or goodwill case. 1. Clear fogged/condensed LED headlamps and LED rear lamps: 1. Drive the vehicle into the workshop (temperature higher than +18 °C/+64.4°F). Note: Do not perform an engine wash before the defogging test. 2. Switch off the engine and connect battery support via a charger. 3. Open the hood or trunk. 4. Switch on the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). 7. If the condensation has disappeared, nothing else has to be done. Note: If defrosting has been performed, you can skip the first step. 2. Leak test of headlamp with overpressure: • Connect test adapter to pressure tester. (Figure 1) • Check test adapter for leak tightness. To do so, connect plug and coupling (picture 2) and apply a maximum overpressure of 30 mbar. The pressure must remain constant. If the pressure does not remain constant, use a new adapter. • All vents have to be sealed with sealing compound and the existing diaphragm with the stamp (picture 3 [3]). (Picture 4) Make allowance for the different headlamp variants here (there are different outlet openings). • Check if the headlamp needs to be removed to gain access to the diagnostic socket on the headlamp housing. • Plug the adapter onto the diagnostic socket on the headlamp housing. (Picture 5). • Apply a maximum of 30 mbar overpressure to the headlamp housing. Note: If the maximum overpressure of 50 mbar is exceeded the headlamp seal will be damaged (picture 6). • If a pressure drop of less than 10 mbar is measured within 30 seconds, the headlamp is tight and there is natural physical condensation. • If a higher pressure drop than 10 mbar is measured within 30 seconds, the headlamp is leaky. Note: The leaky position can be localized with the aid of soap suds. If the pressure test is not passed, the headlamp is leaky. If the cause cannot be rectified, the headlamp must be replaced. Note: If the headlamp is replaced, no dry packs may be installed on the new replacement headlamp. AR82.10-P-5455WT was created for the pressure test. **NOTE - As of Sept 2025 the pressure testing tool is not finalized and may require modifications to fit properly. This AR can be used as a reference manual for all closed headlamps. In the event of an open headlamp system, the vent ducts must be sealed before the pressure test.

LI33.30-P-056665

Service Bulletin/Repair Instructions

Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The clunk is heard once when changing from forward to reverse (and vice versa). Note: Sound file in attachment Cause If the complaint is eliminated by experimentally loosening the outboard collar nut (by 1 turn), the problem is due to micromovement in the connection between the wheel bearing inner race and the joint housing of the side shaft. Note: The collar nut must always be replaced after being loosened and must be tightened to the specified torque. Remedy Coat contact surface of side shaft with wheel bearing with Molykote paint. To do this, proceed as follows: 1. Remove outboard side shafts (extract outer joint gearing from wheel hub) 2. Clean contact surface A (see image file in attachment "Outer joint housing before") before coating with Molykote, using "spirit" (free of dust and grease) 3. Coat contact surface A (see image file in attachment "Outer joint housing after") using Molykote and leave to dry for one hour in removed condition 4. Reinstall side shafts

LI82.35-P-078467

Service Bulletin/Repair Instructions

Complaint Washer fluid system leaks Cause Various possible causes: 1. Washer fluid reservoir itself. 2. Seal on washer fluid pump/washer fluid reservoir. 3. Washer fluid pump. 3.1. Distributor housing leaks. 3.2. Pump fitting leaks. 3.3. Washer fluid hose cannot be snapped into place on pump fitting. 3.4. Washer fluid hose will not stay on pump fitting, although connector OK. 4. Washer fluid line. 4.1 Connector will not stay on pump fitting because it is broken. 4.2 Sealing ring in connector missing. 4.3 Sealing ring in connector fitted, but deformed and therefore leaks. 4.4 Damage to washer line by animal. 5. Seal on heating washer fluid reservoir/washer fluid reservoir. Remedy Replace defective component parts only. Do not replace any adjacent component parts that are intact. Note: Repair kits for washer line hoses do exist to allow patches for line damage.

LI82.70-P-077433

Service Bulletin/Repair Instructions

Complaint During a phone call, the called party has difficulty understanding/cannot understand the driver, or interference/background noises are audible to the called party during a call. It becomes increasingly difficult to understand as the speed rises. Cause A. Seating of the microphones in the headliner. Side edges are covered by the textile cover (see picture "1") B. Assembly of microphones (B25/20 or B25/21) in the headliner. C. Dirt inside the microphone housing Remedy 1. Press finger on rear of microphone (on adhesive tape) 2. Remove microphone cap from the front 3. Eliminate protruding material residues of the microphone cutout at the headliner, e.g. with a soldering iron. The microphone must be seated in the headliner as shown in picture "2". 4. Push microphone from behind until it is firmly pressed into the headliner 5. Maintain pressure and press/clip cap into microphone from the front. Note: The cover cap must be clearly heard and felt to engage. 6. This procedure must be carried out on both microphones (B25/20 and B25/21) Note: • It is recommended to replace the cover caps. • The non-woven cloth in the cover cap protects the microphone from soiling and must not be removed. NOTE: The information contained in this document is intended for use by trained, professional technicians with the knowledge to properly and safely perform diagnosis and repairs on Mercedes-Benz vehicles, using Mercedes-Benz approved tools and equipment. It informs service technicians about conditions that could occur in certain vehicles and provides information that could assist in proper vehicle diagnosis, service, or repair. It does not indicate that a defect is present in any vehicle referenced in this document nor does it imply warranty coverage. DO NOT assume that a symptom or condition, or a described cause of a symptom or condition, affects any particular vehicle or groups of vehicles, or that a described repair applies to any particular vehicle or groups of vehicles. There can be multiple causes resulting in the same or similar symptoms or conditions described in this document, and trained professional service technicians must use their diagnostic skills to make evaluations on a case-by-case basis. The information contained in this document does not guarantee warranty coverage nor does it extend the vehicle’s warranty in any way.

LI82.10-P-078307

Service Bulletin/Repair Instructions

Complaint Headlamps leaking or fogged Cause The fogging of the headlamp is a natural phenomenon which can occur under certain climatic conditions. In contrast to a leaky headlamp, physical fogging does not result in a technical impairment of the headlamp. A leak test must be performed to determine if physical fogging exists or if the headlamp is leaky. Remedy In advance, observe LI82.10-P-078301 "Headlamps or Front Fog Lamps Leaking or Fogged". 1. Prepare headlamp/check for external damage: For headlamps with a closed system 1. Check the headlamps for any external damage and check also for correct seating of the Gore-diaphragm/correct latching of the cover caps. 2. If the headlamp exhibits any external damage, replace the headlamp. For headlamps with an open system 1. Check the headlamps for any external damage and seal off the vent then make sure the cover caps are latched correctly into place. 2. If the headlamp exhibits any external damage, replace the headlamp. Note: A headlamp with external damage is not a warranty or goodwill case. 2. Leak test of headlamp with overpressure: • Connect test adapter to pressure tester. (Figure 1) • Check test adapter for leak tightness. To do so, connect plug and coupling (picture 2) and apply a maximum overpressure of 30 mbar. The pressure must remain constant. If the pressure does not remain constant, use a new adapter. • Seal all the outlet openings using sealing compound and the given diaphragm with the plunger (picture 3). (Picture 4) Make allowance for the different headlamp variants here (there are different outlet openings). • Check if the headlamp needs to be removed to gain access to the diagnostic socket on the headlamp housing. • Plug the adapter onto the diagnostic socket on the headlamp housing. (Picture 5). • Apply a maximum of 30 mbar overpressure to the headlamp housing. Note: If the maximum overpressure of 50 mbar is exceeded the headlamp seal will be damaged. • If a pressure drop of less than 10 mbar is measured within 30 seconds, the headlamp is not leaky and the problem is down to natural physical fogging. • If a pressure drop of more than 10 mbar is measured within 30 seconds, the headlamp is leaky. Note: The leaky position can be localized with the aid of soap suds. Replace any leaky headlamps. Note: Desiccant packs can be installed for headlamps that are not leaky. See: • LI82.10-P-064766 Fogged headlamp, desiccant pack installed - open ventilation system • LI82.10-P-078304 Fogged headlamp, desiccant pack installed - closed ventilation system

LI82.10-P-078301

Service Bulletin/Repair Instructions

Complaint Headlamp or front fog lamp leaky or fogged Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to any technical impairment of the headlamp. Headlamps comply with all applicable standards. If a pressure compensation diaphragm is fitted in the housing cover, then the lamp unit is a "closed system". Remedy Headlamp: Remedy 1 Clearing fogged/condensed LED headlamps and LED rear lamps: 1. Drive vehicle into workshop (temperature higher than +18 °C/+64.4 °F) and connect the exhaust extraction. Note: Do not perform an engine wash before the defogging test. 2. Switch off the engine and connect battery support via a charger. 3. Open the hood or trunk. 4. Switch on the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). Clearing fogged/condensed halogen/xenon headlamps: 1. Drive the vehicle into the workshop (temperature higher than +18 °C/+64.4°F). Note: Do not perform an engine wash before the defogging test. 2. Switch off the engine. 3. Open the hood. 4. Switch off the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). Note: If there is no visible reduction in the formation of condensation, check the headlamp for a defect. (See Remedy 2) It is not physically possible to defog the headlamps completely. Fogging does not impair the operation or the service life of the headlamp. Remedy 2 A Damaged headlamp can be identified as follows: 1. Check the headlamp for external damage and that the cover caps and the diaphragm are correctly seated. 2. Check the electrical connectors of the plugs and pins. 3. Check for leak tightness in accordance with LI82.10-P-078307. The test can only be conducted on headlamps. 4. If the headlamp or the rear lamp has any external damage, replace the component part in accordance with the WIS instructions. Note: External damage to the headlamp/rear lamp or faulty seating of the cover caps does not present a warranty or goodwill case. With headlamps, it is possible to install desiccant packs if the problem occurs repeatedly. Open ventilation system: LI82.10-P-064766. Closed ventilation system LI82.10-P-078304

LI82.10-P-078069

Service Bulletin/Repair Instructions

Complaint Rear lamps fogged up/not leaktight. Cause Fogging of the rear lamps is a natural phenomenon, which can occur under certain climatic conditions. This does not lead to any technical impairment of the rear lamps. Remedy Rear lamp: Remedy 1: Clearing fogged/condensed rear lamps: 1. Drive the vehicle into the workshop (temperature higher than +18 °C/+64.4 °F) Note: Do not wash the vehicle or subject it to high-pressure cleaning before the defogging test. 2. Switch off the engine and connect battery support via a charger. 3. Open the trunk. 4. Switch on the exterior lighting. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation -> a significant reduction in the formation of condensation must be clearly recognizable (defogging progress).

NCU-2023060005

Service Bulletin/Repair Instructions

Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2009-2012 GL-Class, ML-Class, R-Class, and S-Class (164/166, 251, 221 platforms) vehicles, the coding for the engine control unit does not correspond to the specifications as part of the “BlueTEC update” diesel field measure (aka “Emission Modification”). This could result in the VIN number not being read out from the vehicle. This could affect the vehicle smog check. MBUSA will conduct an Emission Service Campaign in which an authorized Mercedes-Benz dealer will update the SCN coding for the engine control unit on the affected vehicles.

LI91.18-P-077075

Service Bulletin/Repair Instructions

Crease formation on genuine leather seat covers in vehicles with low mileage • Objects left on the seats for extended periods of time (pressure marks). • Objects wedged between the seat backrest and seat cushion (e.g. seat belt buckle). • Light initial creases due to vehicle handling. • Light creases in the outer covers originating from the production process (missing finish). Heat treatment of the seat covers using heat gun and plastic wedge. Be very careful to not overheat the seat material!

NCU - HVAC Warra

Service Bulletin/Repair Instructions

To enhance the satisfaction of our customers, avoid further costs of litigation and return focus to its core businesses, Mercedes-Benz USA, LLC (MBUSA) has entered into a settlement regarding claims relating to alleged mold and mildew type odors originating from the HVAC system in certain Mercedes-Benz vehicles. As part of the settlement, MBUSA has agreed to offer sliding-scale warranty coverage for certain vehicles diagnosed as having mold or mildew type odors originating from the HVAC system?although that coverage will not take effect until the settlement is judicially approved and other events occur; likely not until December 7, 2020 at the earliest (see below). If the settlement becomes effective, coverage will include cleaning of the evaporator and replacement of the HVAC filters

LI82.20-P-070189

Service Bulletin/Repair Instructions

Retrofitted front door exit lamps with logo projection flicker

LI8330P0496447

Service Bulletin/Repair Instructions

No cooling output, fault code 9006 stored in air conditioning control unit.

LI0702P0547173

Service Bulletin/Repair Instructions

Ticking or pulsing noise from high-pressure pump and/or fuel injectors.

LI82.10-P-064172

Service Bulletin/Repair Instructions

Headlamp lights up sporadically

TakataRecall

Service Bulletin/Repair Instructions

Additional information around the recent recall announcement affecting approximately 705,983 Mercedes-Benz passenger vehicles involving Takata driver-side airbags containing PSDl-5 type inflators

RecallUpdate

Service Bulletin/Repair Instructions

Recall Campaign announcement for Takata driver airbags.

LI91.22-P-059988

Service Bulletin/Repair Instructions

2nd seat row Power Easy Entry function impairment of backrest folding

LI91.22-P-059388

Service Bulletin/Repair Instructions

Electric motor for the folding rear backrest of the 3rd seat row is inoperative or makes noises during adjustment

LI91.12-P-059378

Service Bulletin/Repair Instructions

The release loop of the Easy Entry seat in the 2nd seat row is awkward to operate as it is difficult to access

LI27.20-P-059067

Service Bulletin/Repair Instructions

Delayed 2-3 Upshift

LI30.30-P-055823

Service Bulletin/Repair Instructions

Collision Prevention Assist (CPA) may warn for no obvious reason (optical and/or acoustic warning message).

C1A140101

Service Bulletin/Repair Instructions

SUMMARY TO BE PROVIDED ON A FUTURE DATE.

GI88.40-P-057430

Service Bulletin/Repair Instructions

Message in instrument cluster "DISTRONIC PLUSCurrently Unavailable - See Owner's Manual"

S-SC- 2013090008

Service Bulletin/Repair Instructions

This Service Campaign has been initiated because Daimler AG (DAG), the manufacturer of Mercedes-Benz vehicles, has determined that the mbrace software does not correspond to current production configuration. An authorized Mercedes-Benz dealer will update the mbrace control module software at the next workshop visit.

LI8270P055572

Service Bulletin/Repair Instructions

Mobile phone cotacts are not transferred completely.

LI27.20-P-055758

Service Bulletin/Repair Instructions

FC 2783 (Friction power of torque converter lockup clutch is too high) or FC 0741 (Actuation of torque converter lockup clutch not possible) stored in transmission control unit. One possible additional customer complaint could be "poor acceleration" e.g. due to engine intervention. This can affect all NAT2FE+ (7G-TRONIC PLUS) vehicles with engines OM651, OM642LS and M278 in the production period from 04/2011 to 02/2012 and with more than 10,000 km. The two fault codes can also occur in combination with rpm sensor faults (see also GI27.50-P-035556). The rpm sensor fault is not connected with this complaint.

LI82.95-P-056655

Service Bulletin/Repair Instructions

Customer experiences low battery conditions, resulting in jump starts, and eventually requiring battery replacement.

LI82.85-P-055695

Service Bulletin/Repair Instructions

The COMAND unit does not start or the COMAND display remains dark. The COMAND unit cannot be operated. Note: The problem disappears after a lengthy idle period (>6h) or after interrupting the power supply (circuit 30).

LI-33-25

Service Bulletin/Repair Instructions

MERCEDES-BENZ: AT THE FRONT WHEEL BEARING THERE IS A LOUD KNOCK SOUND WHEN GOING AROUND A CORNER AT SLOW SPEEDS. THERE IS AN INSUFFICIENT FIT AT THE BEARINGS. *RM UPDATED 10/14/11. *PE UPDATED 6/19/13. *PE

LI-91-40-P050718

Service Bulletin/Repair Instructions

XENTRY(MERCEDES): BULLETIN PROVIDED REGARDING CONTROL UNIT DETECTING AN UNDERVOLTAGE AFTER BUCKLING UP (BELT SLACK ELIMINATION) DURING SEAT BELT ADJUSTMENT SEQUENCE. *PE UPDATED 5/23/12. *JS

LI-05-20-P

Service Bulletin/Repair Instructions

MERCEDES-BENZ: THE MALFUNCTION LIGHT IS ON WITH MULTIPLE POSSIBLE TROUBLE CODES STORED. THERE COULD BE A PROBLEM WITH THE CAMSHAFT AND/OR SCORING OF A PISTON. *RM

SCB-2010110005

Service Bulletin/Repair Instructions

MERCEDES BENZ: THERE IS A SOFTWARE PROBLEM RELATING TO THE TANK HEATER LINES. *RM

LI-27-60-P049270

Service Bulletin/Repair Instructions

MERCEDES-BENZ: THE AUTO-TRANSMISSION SWITCHES TO LIMP HOME MODE OR HAS NO POWER. THERE ARE MULTIPLE POSSIBLE FAULT CODES. A PISTON MAY BE DAMAGED. *RM

LI-47-50

Service Bulletin/Repair Instructions

MERCEDES-BENZ: THE FUEL LEVEL INDICATOR IS WRONG.

LI-68-50

Service Bulletin/Repair Instructions

MERCEDES-BENZ: THE LOAD COMPARTMENT ROLLER BLIND HAS CATCH BOLTS LOOSE OR BROKEN FROM IMPROPER FORCE WHEN USING. *RM

LI-07-08

Service Bulletin/Repair Instructions

MERCEDES-BENZ: THE STARTER CLICKS BUT DOES NOT CRANK WHEN TRYING TO START. A VOLTAGE DIP IS CAUSING THE IGNITION PROCEDURE TO FAIL. *RM

SB-20101100005

Service Bulletin/Repair Instructions

MERCEDES-BENZ: SOFTWARE UPDATE FOR HEATER LINES. *RM

SB-32-25-82

Service Bulletin/Repair Instructions

MERCEDES-BENZ: SHOCK ABSORBER PROCEDURE. *RM

SB-91-60-193

Service Bulletin/Repair Instructions

MERCEDES: AIRBAG DURABILITY AND RELIABILITY. AIR BAG SRS CONTROL MODULE (N2/2) DOES NOT HAVE A SET SHELF LIFE AND WILL NORMALLY BE RELIABLE FOR THE LIFE OF A VEHICLE. WITH 164, 216 221, 251 AND NEWER, THE AIRBAG CONTROL UNIT CAN BE RESET FIVE TIMES. WITH MODES 202, 210 AND NEWER, THE AIRBAG CONTROL UNIT CAN BE RESET THREE TIMES. EARLIER MODELS WOULD HAVE TO HAVE THEIR AIRBAG CONTROL UNIT AND TRIGGERED RESTRAIN COMPONENTS CHANGED ONLY AFTER AN ACCIDENT. NO MODELS OR MODEL YEARS LISTED. *PE

P-049567

Service Bulletin/Repair Instructions

MERCEDES: BATTERY SYMBOL AND SERVICE REQUIRED (IN WHITE). FAULT MESSAGE IS DISPLAYED IF THE CHARGE LEVEL IS TOO LOW OR THE PARK PAWL ADDITIONAL BATTERY IS DEFECTIVE. IN ADDITION FAULT CODE FC 9061 AND/OR FC 9062 IS STORED IN THE FRONT SAM. *PE

SB-91-40-192

Service Bulletin/Repair Instructions

MERCEDES: REPLACING THE EMERGENCY TENSIONING RETRACTOR. WHEN REPLACING THE LEFT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR (A76) OR THE RIGHT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR (A76/1), RETURN THE DAMAGED PART TO THE QEC WITH THE WARRANTY PARTS RETURN SLIP AND WITH THE QUICK TEST REPORT. *PE

LI82-30-P-045348

Service Bulletin/Repair Instructions

MERCEDES (XENTRY): REAR WINDOW WIPER FAILS TO FUNCTION OR STOPS INTERMITTENTLY. LOW VOLTAGE CUTOFF RELAY IN THE REAR FUSE AND RELAY BLOCK (REAR (SRB). ONLY PART NUMBER A164 540 02 72 CAUSES THIS CONDITION. CHECK PART NUMBER OF REAR SRB, IF THE PART NUMBER IS A164 540 02 72, FOLLOW PROCEDURE TO RESOLVE. MODELS 164.175/186 AND 251.165/175. NO MODEL YEARS LISTED. *PE

LI-58-40

Service Bulletin/Repair Instructions

XENTRY (MERCEDES): ENGINE WARNING LAMP IS CURRENTLY ON OR WAS ON AND A DELAY FAULT OF THE CAMSHAFT ADJUST TO CURRENT OR STORED IN THE ENGINE CONTROL UNIT. MODELS 171, 203, 209, 211, 219, 221, 216, 230, 164, 251, AND 403. NO MODEL YEARS LISTED. *PE

SB-2009070002

Service Bulletin/Repair Instructions

MERCEDES: IT HAS BEEN DETERMINED THAT IN THE AFFECTED VEHICLES AN INCREASED NO LOAD CURRENT MAY OCCUR FROM REPEATED OPENING AND CLOSING OF THE LIFT GATE, USING THE KEY REMOTE, OR THE LIFT GATE LOCK SWITCH OVERSHOOTS THE SWITCHING RANGE. THESE CONDITIONS MAY CAUSE THE BATTERY TO DRAIN. *PE

TB-P-047927

Service Bulletin/Repair Instructions

MERCEDES: FOLLOWING FAULT CODES ARE ENTERED IN THE CONTROL UNIT AND DISPLAYED-FC5320 DRAIN VALVE:OPEN CIRCUIT OR INSUFFICIENT VALVE CURRENT IN MODELS SERIES 211, 219; FC5260 DRAIN VALVE OPEN CIRCUIT OR INSUFFICIENT VALVE CURRENT IN MODEL 221; FC5250 DRAIN OPEN CIRCUIT OR INSUFFICIENT VALVE CURRENT IN MODEL SERIES 251, 164. DEFECTIVE CONNECTING CABLES TO DRAIN VALVE AT AIRMATIC COMPRESSOR. THIS RESULTS IN THE SETTING OF THE FAULT CODES. NO MODEL YEARS LISTED. *PE

SB-82-30-366E

Service Bulletin/Repair Instructions

MERCEDES BENZ: ADJUSTING WIPER ARMS. IF YOU RECEIVE REPORTS ON CERTAIN VEHICLES OF WIPERS CHATTERING/NOISY, PROCEED AS FOLLOWS: INSPECT WIPER BLADES/INSERTS FOR WEAR AND REPLACE; THOROUGHLY CLEAN WINDSHIELD; VERIFY USE OF CORRECT WASHER FLUID; CHECK WASHER NOZZLE ADJUSTMENT; CHECK WIPER ARM ANGLE ADJUSTMENT; AND RECORD VALUES PER APPLICABLE MODEL; IF REQUIRED, ADJUST WIPER ARM ANGLE. MODELS 164/251. NO MODEL YEARS LISTED. *PE

TSB-2009020004

Service Bulletin/Repair Instructions

MERCEDES: IT HAS BEEN DETERMINED THAT THE TELE AID MAY NOT FUNCTION PROPERLY AS A RESULT OF A HARDWARE FAULT IN THE TELE AID CONTROL MODULE. IF THIS CONDITION EXISTS AN INSTRUMENT CLUSTER MESSAGE OF NO SERVICE AND TELE AID INOPERABLE WILL BE SEEN. *PE

Reading this report

Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.

2009 Mercedes Benz Gl450 Service Bulletins: 49 bulletins | CarFathom