SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM
2008 Mercedes-Benz GL320
Recalls, owner-reported complaints, investigations and safety data
Data refreshed
NHTSA has issued a “do not drive” advisory affecting this model year.
Campaign 24V298000. Confirm whether your specific vehicle is covered using its VIN before acting on this.
Check your VIN on NHTSA.govOverview
Our database contains 20 NHTSA owner-reported complaints for the 2008 Mercedes-Benz GL320, most frequently naming the steering, engine and fuel system categories. 2 safety recalls have been issued covering this model year; and 60 manufacturer communications are on file.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Complaint activity over time
When owners filed reports about this model year
View as table
| Month | Complaints filed | Cumulative |
|---|---|---|
| Mar 2011 | 1 | 1 |
| Nov 2011 | 1 | 2 |
| Jun 2012 | 1 | 3 |
| Jul 2012 | 1 | 4 |
| Oct 2013 | 2 | 6 |
| Feb 2014 | 1 | 7 |
| Apr 2014 | 4 | 11 |
| Jun 2014 | 1 | 12 |
| Jan 2015 | 1 | 13 |
| Oct 2015 | 1 | 14 |
| Nov 2015 | 1 | 15 |
| Mar 2018 | 1 | 16 |
| Jul 2018 | 1 | 17 |
| Mar 2020 | 1 | 18 |
| Jul 2022 | 1 | 19 |
| Aug 2022 | 1 | 20 |
What owners report
Complaints grouped by the component NHTSA recorded
- Steering735.0%
- Engine210.0%
- Fuel system210.0%
- Interior & seats210.0%
- Brakes210.0%
- Suspension15.0%
- Electrical15.0%
- Exterior lighting15.0%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Safety recalls
2 campaigns cover this model year
Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.
Check a VIN on NHTSA.govSERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM
Recent owner complaints
Reports submitted to NHTSA, shown in the owner's own words
The contact owns a 2008 Mercedes-Benz GL320. The contact received recall notification of NHTSA Campaign Number: 22V315000 (Service Brakes, Hydraulic). The local dealer was contacted and informed the contact that they could only repair the vehicle after a month. The contact stated that the manufacturer had exceeded a reasonable amount of time to complete the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.
- NHTSA ID
- 11479622
- Incident
- Aug 16, 2022
The contact owns a 2008 Mercedes-Benz GL 320. The contact received notification of NHTSA Campaign Number: 22V315000 (Service Brakes, Hydraulic) which stated that the tow was free of charge. The contact stated that he has contacted Mercedes-Benz roadside assistance to arrange for the tow and was redirected to call the Mercedes-Benz recall hotline. The contact stated that he was told to contact several other numbers to arrange for tow the dealer. The contact stated the was unable to arrange the tow to the dealer. The contact was upset that he was given a no-drive recall, and has contacted the manufacturer and the dealer with no results. The contact stated he has not experienced a failure.
- NHTSA ID
- 11475718
- Incident
- Jul 25, 2022
WIRIING INSULATION IN HEADLIGHTS DETERIORATES RESULTING IN SUDDEN AND REPEATED FAILURE OF HEADLAMPS.INFORMATION SHARED WITH HELLA (ORIGINAL MANUFACTURER, BUT THEY CHOOSE NOT TO RESPOND). FAILED PARTS AVAILABLE FOR INSPECTION.
- NHTSA ID
- 11318184
- Incident
- May 1, 2017
- Mileage
- 195,000 mi
THE TRAILER HITCH HAS BEEN RECALLED NHTSA CAMPAIGN NUMBER 08V242000 : MB RECALL # 2008-050004 MB TECHNICAL SERVICE BULLETIN # 2008050004C. MERCEDES BENZ (CHRISTIAN TREIBER VP CUSTOMER SERVICE THRU ERICK [LAST NAME REFUSED] EXECUTIVE REFERRAL MANAGER) HAVE IN WRITING DENIED MY REQUEST TO RECOGNIZE THE NEED TO REPAIR MY TRAILER HITCH ACCORDING TO THEIR RECALL AND TSB DENYING THAT THERE IS A RECALL.
- NHTSA ID
- 11111446
- Incident
- Jun 21, 2018
- Mileage
- 127,000 mi
MERSEDES BENZ CUSTOMER SUPPORT AND BONITA SPRINGS DEALERSHIP FL REFUSED TO DEAL WITH RECALL NHTSA CAMPAIGN ID 08V242000 MB CAMPAIGN 2008050004 BECAUSE RECALL WAS NOT LOGGED AGAINST VIN # AND REFUSED TO LOG AGAINST VIN DESPITE SEEING RECALL LETTER WHICH DESCRIBES PROCESS AND SEEING ENTIRE MB SERVICE BULLETIN. TRAILER HITCH HAD BEEN INSPECTED BY MB MECHANIC AND DETERMINED TO BE AFFECTED TRAILER HITCH AND THAT RECALL HAD NOT BEEN COMPLETED. THE RECALL WARNS THAT TRAILER HITCH SHOULD NOT BE USED FOR ANYTHING WHICH DESTROYS MY PURPOSE FOR PURCHASING THE VEHICLE. I WOULD LIKE SOME COMPENSATION FOR THIS AND THE RECALL COMPLETED AS SOON AS POSSIBLE.
- NHTSA ID
- 11078793
- Incident
- Mar 12, 2018
- Mileage
- 126,000 mi
TL* THE CONTACT OWNS A 2008 MERCEDES BENZ GL320. THE CONTACT NOTICED OIL LEAKING FROM THE VEHICLE WHILE IT WAS PARKED. WHILE DRIVING 60 MPH AND MAKING A TURN, AN ABNORMAL NOISE WAS HEARD FROM THE STEERING WHEEL. THE FAILURE OCCURRED CONSTANTLY. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE RACK AND PINION NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 08V682000 (STEERING) THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 136,000.
- NHTSA ID
- 10789324
- Incident
- Oct 1, 2015
- Mileage
- 136,000 mi
THE CAR BROKE IN THE MIDDLE OF THE 45 MPH ROAD IN A VERY DANGEROUS INTERSECTION. TOWED THE CAR TO DEALER AND THEY TOLD ME THE ENGINE IS COMPLETELY DAMAGED AND NEED TO BE REPLACED. THEY TOLD ME THE TIMING CHAIN GOT LOOSE AND WILL COST ~$15K TO REPLACE THE DAMAGED ENGINE.
- NHTSA ID
- 10787401
- Incident
- Sep 15, 2015
- Mileage
- 90,000 mi
I WAS MAKING LEFT HAND TURN, SUDDENLY THE POWER STEERING ASSIST FAILED AND IT WAS IMPOSSIBLE TO STEER THE VEHICLE TO BRING IT TO SAFETY. THIS HAPPENED JUST PRIOR TO US ENTERING THE FREEWAY. IF WE WERE TO ENTER THE FREEWAY AND THIS FAILURE WOULD OCCUR ON THE FREEWAY, WE WOULD END UP IN A CRASH. WE CONTACTED MERCEDES. THEY SENT A TOW TRUCK AND THE VEHICLE WAS TOWED TO BEVERLY HILLS MERCEDES. WE CONTACTED MERCEDES USA TO INFORM THEM OF THE INCIDENT. THEIR CUSTOMER SERVICE CALLED US BACK AND STATED THAT EVEN THOUGH THE POWER STEERING FAILED WE SHOULD HAD BEEN ABLE TO MANEUVER THE CAR TO SAFETY ( WHICH WE WERE NOT ABLE TO DO). MB REPRESENTATIVE DID NOT GIVE US ANY ASSURANCES THAT THE UNDERLYING PROBLEM OF THE VEHICLE BEING UNSAFE IN CASE OF POWER STEERING FAILURE WILL OR CAN BE ADDRESSED SINCE THIS WAS THE WAY THE VEHICLE WAS DESIGNED. WE HAVE 4 LITTLE KIDS AND WE FEEL IT IS EXTREMELY DANGEROUS TO DRIVE THIS TYPE OF THE VEHICLE WITH THIS STEERING DESIGN DEFECT. THERE ARE THOUSANDS OF MERCEDES GLS ON A ROAD. *TR
- NHTSA ID
- 10677044
- Incident
- Jan 16, 2015
- Mileage
- 53,000 mi
Manufacturer communications
A bulletin sent by a manufacturer to its dealers. Not a recall, and repairs are not necessarily free.
POWER TRAIN
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).
EXTERIOR LIGHTING
Complaint Headlamp, 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. 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: 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. 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 of fogged/condensed LED headlamps and LED rear lamps on electric vehicles: 1. Drive the vehicle into the workshop (temperature higher than +18 °C/+64.4°F). 2. Connect battery backup via a charger. 3. Open the front-end flap and ensure sufficient ventilation. 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 condensation, check the headlamp for malfunctions. (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. Note: Only implement Remedy 1 for model series 463 (from model year 2018) and model series 465. Remedy 2 A defective 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 according to 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. Note: With headlamps, it is possible to install desiccant packs if the problem occurs repeatedly. • Open ventilation system LI82.10-P-078302 • Closed ventilation system LI82.10-P-078304
EXTERIOR LIGHTING
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 "Headlamp/front fog lamp leaky or fogged". 1. Prepare headlamp/check for external damage: For headlamps with a closed system • Check the headlamps for any external damage and check also for correct seating of the Gore-diaphragm/correct latching of the cover caps. • If the headlamp exhibits any external damage, replace the headlamp. For headlamps with an open system • Check the headlamps for any external damage and seal off the vent then make sure the cover caps are latched correctly into place. • 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 (Figure 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 (Figure 3). (Figure 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. (Figure 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 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. Replace any leaky headlamps. Desiccant packs can be installed for headlamps that are not leaky. Observe the following documents for installation of desiccant packs: • LI82.10-P-078302 Fogged headlamp, desiccant pack installed - open ventilation system • LI82.10-P-078304 Fogged headlamp, desiccant pack installed - closed ventilation system
EXTERIOR LIGHTING
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.
EXTERIOR LIGHTING
Complaint Headlamp, 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. 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: 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. 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 of fogged/condensed LED headlamps and LED rear lamps on electric vehicles: 1. Drive the vehicle into the workshop (temperature higher than +18 °C/+64.4°F). 2. Connect battery backup via a charger. 3. Open the front-end flap and ensure sufficient ventilation. 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 condensation, check the headlamp for malfunctions. (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 defective 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 according to 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. Note: With headlamps, it is possible to install desiccant packs if the problem occurs repeatedly. • Open ventilation system LI82.10-P-078302 • Closed ventilation system LI82.10-P-078304
POWER TRAIN
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
Manufacturers file copies of the bulletins they send to dealers with NHTSA. These often describe diagnostic or repair procedures for a known condition. They are not recalls: repairs described in a bulletin are usually only free if the vehicle is still under warranty or the manufacturer has extended coverage.
Compare model years
Complaint and recall counts across every year of this model
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers. Older model years have had longer for reports to accumulate.