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2008 Mercedes-Benz GL-Class Repair Histories

2008 Mercedes-Benz GL-Class Repair Histories 2008 Mercedes-Benz GL-Class Repair Histories

74 TrueDelta members own (or used to own) a 2008 Mercedes-Benz GL-Class. 43 of these members (58.1%) have reported repairs for their car. A total of 261 repairs to 2008 Mercedes-Benz GL-Classs--an average of 3.5 per vehicle--have been reported.

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently 2008 Mercedes-Benz GL-Class problems occur, check out our car reliability stats.

Percentage of 2008 Mercedes-Benz GL-Class repairs by problem area

Chart based on 261 repairs.

2008 Mercedes-Benz GL-Class repair cost distribution

Chart based on 34 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
Non-members can see only ten 2008 Mercedes-Benz GL-Class repair histories. Log in or join us to see them all.

2008 Mercedes-Benz GL-Class 4dr SUV

turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD

Mercedes-Benz GL-Class in Texas, United States
Nov 2008 - Feb 2015
Mar 2009   Small oil leak caused by uninstalled o-ring at the factory.  
Apr 2009   another leak in engine caused oil to drip onto timing belt, breaking the belt and shutting the engine down on the Interstate Highway. Vehicle hauled to dealer on flatbed for repair. 
Jul 2009   fuel tank locking door broken---dealer replaced switch that locks fuel door to frame 
Nov 2009   Left rear seat raise/lower motor defective. Replaced with new part. 
Oct 2010   cam shaft problem reported by check engine light 
Dec 2010   unknown sensor causing check engine light to illuminate; sensor replaced 
May 2011   Liftgate stuck closed and would not unlatch 
Sep 2011   Tire pressure monitoring system failure. TPMS System still not working after 2 failed attempts by the dealer to resolve. 
Jan 2012   Tire Pressure Monitoring System (TPMS): malfunction finally diagnosed and repaired. 
Jun 2012   Strut replaced. Had to order part from Germany. covered under extended warranty. 
Sep 2012   The other front strut broke and had to be repaired under warranty. 
Feb 2013   Electrical ignition relay replaced. Truck had to be towed on flatbed to dealer. Battery died. 
Aug 2013   air suspension--blown air shock on left rear. I believe this is the 3rd or 4th one of these to blow since we bought the vehicle. 
Oct 2013   Power steering pump and controller went out. another busted air shock--fourth time this has happened on this vehicle 
Nov 2013   Drivers door lock no longer worked with electric door lock--had to replace 
Mar 2014   Leaky oil pump needing full replacement. Also caused damage to servo motors attached to oil pump and other parts. 
Apr 2014 US $500 Honestly I cannot remember the exact repair but it was something either to do with the power steering or ignition system. Cost me another $500. 
Feb 2015   A/C Compressor required replacement 2 middle seat seatbelts faulty. Had to replace 2 latches that no longer worked as well as the middle seatbelt strap. 
Mercedes-Benz GL-Class in New Jersey, United States
Feb 2009 - Mar 2010
Mar 2009   Replaced fuel pump. 
Mercedes-Benz GL-Class in Ohio, United States
Feb 2008 - Aug 2013
May 2008   Driver's window needed new motor, regulator and seals. Rear hatch intermittently not closing fully. Harsh downshifts from 3-2 and 2-1 and "crunching noise" 
Jun 2008   Homelink garage door transmitter not functioning properly 
Dec 2008   False check oil warnings displayed, despite correct oil level. Oil level sensor and bracket replaced under warranty.  Wind noise from driver's door corrected by replacing defective door seal. 
Feb 2009   Chrome trim strip above rear license plate and in front of tailgate handle fell off, requiring replacement of trim and housing to which it attaches. Rear tailgate not latching shut properly. Replaced latch but still not latching properly. Re-adjusted tailgate latch and seems to be working better, although still doesn't latch properly 100% of the time. 
Dec 2009   Oil leak  
Jan 2010   Release handle on second row folding seat broke off 
Jun 2010   Check engine light and glow plug light illuminated. Dealer found a loose bolt near the glow plug that was creating a short. 
Jan 2011   Check engine light came on - replaced exhaust pressure sensor. 
Apr 2011   Driver's window motor slow,replaced Satellite radio not working, replaced sat radio unit Rear hatch not closing properly, adjusted rear hatch again. 
Jun 2011   Check engine light came on and engine died while driving, with loss of power steering. Car had to be towed to dealer, both fuel pumps needed to be replaced. Seems to have resolved issue. Dash ashtray mechanism no longer working smoothly, would pop open too quickly, spilling contents. New ashtry installed. Key developed crack and was replaced under warranty. 
Aug 2011   Fuel guage stopped working correcting - showing about 1/2 tank less than actual level. Faulty wire found in left side fuel sending unit. Repaired. 
Dec 2011   Rear latch not closing properly in cold weather. Has been an ongoing issue since Day 1. 
Aug 2012 US $98 2nd Row seat release lever broke off - second time this part has broken - this time not covered under warranty or extended warranty - $98 repair 
Dec 2012   Car was leaking oil due to failed oil cooler. Oil cooler replaced. Exhaust fumes entering the cabin. Replaced faulty exhaust gasket. 
Feb 2013   Car leaking oil. Oil cooler replaced again. 
Mar 2013   Car leaking oil again and check engine light on; car in limp home mode. Oil intercooler replaced again and seals replaced. 
Apr 2013   Oil/Coolant leaking again 
Mercedes-Benz GL-Class in Georgia, United States
Feb 2008 - Dec 2008
Mar 2008   Rear a/c not cooling properly. Passenger seat creaks when occupied. Faulty rear door seal. 
Jul 2008   Rear A/C not cooling from roof vents. Part ordered 
Mercedes-Benz GL-Class in Oregon, United States
Oct 2007 - Mar 2015
Dec 2007   M-B insisted on reflash of ECU whenever vehicle appeared in shop. Need for reflash unknown - M-B wouldn't tell. 
Feb 2008   Owners manual had many missing critical pages with duplicate pages where the missing pages should have been. Manual replaced after many weeks wait. Improper "check engine oil level at next fillup" message appears often (3-4 time in 70 mi trip). Oil level always OK. Dealer says sensor defect causes message. No new (redesigned) sensors available. Problem is NOT new - 2007 CDI engines often had same ... 
Jul 2008   False oil level warning appeared sometimes. Oil never low. While in shop for problem 1) and 4), battery drained down twice - dead battery - "SOS telaid disconnected" message had appeared in multifunction display, and no crank, no start condition (for 4 tries) had occurred earlier. Rear Signal Acquisition Module 
Aug 2008   Driver door handle refused to 'retract' to 'ready' position. Handle OR lock (latch) malfunction. Parts back ordered. Shop did not take door apart to confirm source of problem. 
Jan 2009   C/S Low oil level warning in I/C again. Oil level not too low. Repeat of problem previously 'repaired'. Oil level sensor replaced with sensor with new part number. Oil pan replaced because original oil pan warped when it was removed - too much sealant.. Mercedes open campaign 2008110009 update rear SAM (Signal Acquisition Monitor) software. Prevents drawdown of battery under certain conditions and sequences of using REMOTE key to close hatch and then NOT open/close doors manually. Cars with keyless go. 
Feb 2009   Problem per description above. Resolution: Dealer replaced door latch assys for all four doors and installed updated springs for all 4 door handle bearing brackets 
Aug 2009   Parking brake handle not returning to correct position after releasing parking brake. Found guide for parking brake release cable was not holding cable correctly. Replaced guide 
Sep 2009   Parktronic audio (rear) alarm volume too low to hear over ambient, most situations. Dealer discovered original factory sound level was set at 80%, he adjusted to 100% for rear sensors, sound is now slightly louder. Tech found L parking light bulb burned out. Removed/replaced halogen headlight to replace bulb. MORE new software updates for rear SAM module. Newer software available and installed on top of new software previously installed. All values and coding checked out correct both before and after update. 
Nov 2010 US $1671 CEL on >2 wks. Local indy couldn't diagnose. Dealer found servomotor failed. This servo drives an air door inside intake manifold [provides engine braking?]. Servo was reported to have failed because oil dripped onto shaft, parts seized. 
Mar 2011   ABS light flashed, cruise control disengaged. After a short pause, able to reset cruise. Problem apparently related to wheel speed sensors/computer/modules. ABS, ESP systems involved. After flushing brake fluid, problems has not reappeared. 
Apr 2011   Exterior mirror, passenger side would not adjust electrically. Plug had disconnected, dealer reconnected plug. 
Sep 2012   CEL appeared. 1st trip to dealer found that diff pressure sensor at DPF filter failed high. Sensor replaced. Fault would not clear. New DPF ordered.  2nd trip DPF replaced. Same day CEL reappeared. 3rd trip found temp sensor found unplugged during DPF repair and not plugged back in. 
Dec 2013   Bad oil leak from center of engine rear. O ring seals to oil cooler had failed - a defect known to Mercedes and the subject of a TSB. Dealer replaced seals with new design. An oil cooling line from the transmission to the radiator was also replaced (not warranty either). ONE of the leaks in the steering rack supply line was fixed by replacing that line. (no warranty there either). 
May 2014   Car stopped without warning while driving. After waiting, car started and ran normally but with MIL set (check engine symbol). Dealer ran diagnostic on fuel system and determined MIL was due to low fuel pressure. Fuel filter was NOT plugged. 
Aug 2014   Driver side rear view mirror quit working (second time this happened). electrical plug inside the mirror housing was disconnected. Mechanic was able to reconnect plug without any disassembly. 
Jan 2015   Driver's side rear view mirror turn indicator lights would occasionally not work and throw a MIL. Dealer diagnosed as requiring a new LED strip and wire harness. $$$$ Took it home, figured out how to take mirror apart, and it now works! 

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2008 Mercedes-Benz GL-Class 4dr SUV

382-horsepower 5.5L V8 7-speed shiftable automatic AWD

Mercedes-Benz GL-Class in California, United States
Sep 2007 - Sep 2011
May 2008   Broken door handle. 
Jun 2009   Oxygen Sensor causing Check Engine Light to come on. Door Handle loose, needed to be secured.  
Sep 2009   Faulty Fuel Pump 
Sep 2011   Air Struts making noise (clunking), and required replacement. Dealer Replaced air strut. 
Mercedes-Benz GL-Class in Colorado, United States
Nov 2007 - Jun 2011
Feb 2008   Electrical codes #2193 and #0436. Replaced right 02 sensor which controls the right side heater. 

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2008 Mercedes-Benz GL-Class 4dr SUV

335-horsepower 4.7L V8 7-speed shiftable automatic AWD w/low range

Mercedes-Benz GL-Class in Maryland, United States
Sep 2007 - Sep 2014
Oct 2007   Tele-Aid module not working. Self-diagnosed, brought vehicle in, and dealer replaced Tele-Aid unit. 
Oct 2008   Driver's side rear outside door handle stuck in the open position. Door would not open from either inside or outside. Fixed at dealer under warranty. 
Nov 2008   Driver's side exterior rearview mirror cracked spontaneously. Replaced in 30 min. under warranty. 
Dec 2008   Driver's side front outside door handle stuck in the open position. Door would not open from either inside or outside. Fixed at dealer under warranty. Successful repair. Speaker in the door sounded like it was "blown", 1 day after repair work on same door. Returned to dealer, was told that speaker had short-circuited, but that it was an "unfortunate coincidence" rather than damage from previous door wo 
May 2009   Keyless Go functions inop on driver's door handle. Door handle replaced under warranty; 2.5 hours. 
Aug 2009   Driver's side pre-catalytic converter O2 sensor short caused "Check Engine" light to illuminate. Replaced by dealer under warranty at no cost. 
Dec 2009   Brought SUV in for tire replacement. Asked dealer to replace left front parking lamp as well. Replacing the bulb did not fix the problem, and after diagnosis, headlamp assembly was removed to access and repair wiring harness. Repaired under warranty, Brought SUV in for tire replacement. While vehicle was up on lift, mechanic noticed fluid leakage from left rear strut. Part ordered, replaced when it arrived next day. Repaired under warranty, no cost. Right rear exterior door handle will not function with KeylessGo. All other functions intact. Part ordered. SUV wouldn't start while out running errands. Roadside assistance first jump started SUV, then later replaced battery. Brought SUV to dealer for testing, who found bad alternator cable. Part ordered. 
Feb 2010   SUV wouldn't start while out running errands. Roadside assistance first jump started SUV, then later replaced battery. Brought SUV to dealer for testing, who found bad alternator cable. Part ordered. Right rear exterior door handle will not function with KeylessGo. All other functions intact. Part ordered. 
Mar 2010   Right rear exterior door handle replaced under warranty. SUV wouldn't start while out running errands. Roadside assistance first jump started SUV, then later replaced battery. Brought SUV to dealer for testing, who found bad alternator cable. Part replaced. 
Jun 2011   Underbody water leak allowed water into frame, which would flow under deceleration or nose-down parking, into well where computers were located. Multiple control units, wiring harnesses, and underbody panels replaced, welds sealed,  
Jul 2011   Felt strip on sunroof wind deflector came off. Dealer replaced entire deflector at no cost under warranty. 
Oct 2011 US $100 Keyless Go functions not working with Driver's side rear door. Door handle assembly replaced. 
Jan 2012   Cam magnets needed replacing, which illuminated the "Check Engine" light. Replaced in 3 hours. 
Mar 2012   Airmatic compressor housing cracked. Replaced. Both exterior door handles would not operate with KeylessGo. Replaced. Second time for both handles. 
Mercedes-Benz GL-Class in Alberta, Canada
Sep 2007 - Mar 2015
Apr 2008   Folding Mirror drivers side stopped functioning. 
Jun 2008   Satellite radio stopped functioning. Shop suspects antennae, but could not fix. 
Dec 2008   Satellite radio stopped functioning. Dealer replaced electronic part - now works. Also replaced trim under rear window that had gap caused during manufacturing. 
Jan 2010   Radio control unit stopped functioning. No SAT, no AM/FM, no bluetooth. 
May 2011 C $500 No audio on radio or satellite radio - control unit blown 
Jun 2011   Shop replaced Audio control unit. (Second time this has been replaced since vehicle was new). Found some frayed wiring was the cause of the control unit blowing. 
Jul 2011   Audio system wiring was replaced. All appears normal now. 
May 2013   Power steering hose blew 
Aug 2013   Camshaft solenoid needed replacement 
Sep 2013   Camshaft Solenoid Problem recurred on other side of engine (according to Dealer). 

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2008 Mercedes-Benz GL-Class 4dr SUV

335-horsepower 4.7L V8 7-speed shiftable automatic AWD

Mercedes-Benz GL-Class in California, United States
Nov 2007 - Aug 2010
Jan 2008   Driver door handle broken. 
Mar 2008   Broken driver door handle. 
Apr 2008   2nd trip for drivers window noise, parts ordered Squeaking driver's door seal. 3rd repair to drivers door, parts replaced this time. 
Nov 2008   Air compressor. 
Dec 2008   Rear liftgate will not close. 
Jun 2009   air pump 
Jul 2009   Another Air pump installed 
Aug 2010   TPMS broken when traded. 

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