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2007 Mercedes Benz GL450

Owner reports · Recalls · Investigations

Limited comparison data

There is not enough comparable history to draw a useful model-year comparison.

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How this year compares

Owner complaints by model year

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Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

All reported categories

Tap a category to read its complaints. One report may name several components.

When problems were reported

Mileage at the reported incident

101 reports with mileage · 14 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Seats. Review the 39 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 27 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Power Train. Review the 17 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

5 crash reports33 fire reports14 injury reports

What owners actually said

115 reports
127,561 miles · Oct 11, 2016
Electrical SystemPower Train

TL* THE CONTACT OWNS A 2007 MERCEDES-BENZ GL450. THE CONTACT STATED THAT THE VEHICLE EXPERIENCED A COMPLETE LOSS OF POWER WHILE DRIVING APPROXIMATELY 65 MPH. THE FAILURE OCCURRED WITHOUT WARNING. THE CONTACT STATED THAT THE FAILURE OCCURRED FOUR TIMES. ADDITIONALLY, THE ENGINE REMAINED FUNCTIONAL DURING TWO OF THE FAILURES, BUT …

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TL* THE CONTACT OWNS A 2007 MERCEDES-BENZ GL450. THE CONTACT STATED THAT THE VEHICLE EXPERIENCED A COMPLETE LOSS OF POWER WHILE DRIVING APPROXIMATELY 65 MPH. THE FAILURE OCCURRED WITHOUT WARNING. THE CONTACT STATED THAT THE FAILURE OCCURRED FOUR TIMES. ADDITIONALLY, THE ENGINE REMAINED FUNCTIONAL DURING TWO OF THE FAILURES, BUT THE VEHICLE COULD NOT SHIFT INTO THE CORRECT GEAR. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 127,561.

NHTSA ODI #10915357

145,000 miles · Sep 23, 2016
Fuel/propulsion System

I WAS DRIVING 70 MPH ON I-80 HIGHWAY WHEN MY CAR COMPLETELY SHUT DOWN. THE SPEEDOMETER WENT FROM 70 DOWN TO 10 MPH IN ABOUT 2 SECONDS. THERE WAS NO WARNING, NO LIGHTS, BELLS, OR SIGNALS TO WARN ME THAT MY FUEL PUMP NEEDED TO BE REPLACED. I HAD TO CUT ACROSS THREE LANES OF TRAFFIC WITH NO POWER, AND ALMOST GOT HIT BY A TRACTOR TR…

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I WAS DRIVING 70 MPH ON I-80 HIGHWAY WHEN MY CAR COMPLETELY SHUT DOWN. THE SPEEDOMETER WENT FROM 70 DOWN TO 10 MPH IN ABOUT 2 SECONDS. THERE WAS NO WARNING, NO LIGHTS, BELLS, OR SIGNALS TO WARN ME THAT MY FUEL PUMP NEEDED TO BE REPLACED. I HAD TO CUT ACROSS THREE LANES OF TRAFFIC WITH NO POWER, AND ALMOST GOT HIT BY A TRACTOR TRAILER WHO HAD TO IMMEDIATELY SWERVE OFF THE ROAD. I COULD NOT RESTART THE CAR, AND HAD TO BE PUSHED BY A NJ STATE OFFICER TO GET TO THE SHOULDER. I WAS ON A VERY BUSY MAJOR HIGHWAY, AND HAD IT OF BEEN RUSH HOUR I DON'T THINK I WOULD HAVE MADE IT WITHOUT CAUSING A MAJOR ACCIDENT. I SERVICE MY CAR REGULARLY, AND NEVER AT ANY POINT HAD THE MERCEDES DEALERSHIP EVER ADVISED ME THAT I NEED A NEW FUEL PUMP. OF COURSE THEY HAVE WARNING SIGNALS TO TELL ME MY WINDSHIELD FLUID IS LOW, BUT NOTHING TO SIGNAL THIS TYPE OF MALFUNCTION. I THEN HAD TO REMAIN ON THE SIDE OF A MAJOR HIGHWAY FOR OVER 90 MINUTES WHILE I WAITED TO THE MERCEDES ROAD SIDE ASSISTANCE TO PICK UP MY VEHICLE. I ADVISED THEM FOUR DIFFERENT TIMES THAT MY LIFE WAS IN DANGER WITH CARS FLYING BY ME AT TOP SPEED. MY FUEL PUMP WAS EVENTUALLY SERVICED AT THE DEALERSHIP, AND THEY HAD NO ANSWER FOR WHY THIS HAPPENED. I AM FILING THIS REPORT NOT ONLY BECAUSE I AM EXTREMELY UPSET, BUT POSSIBLE TO SAVE THE LIVES OF OTHER TRAVELERS. AS I STATED, THERE WAS NO WARNING, NO SIGNS OR MY CAR IN DISTRESS, OR ANYTHING THAT I COULD HAVE DONE TO PREVENT THIS. I WOULD APPRECIATE YOU LOOKING INTO THIS MATTER, AND IF YOU NEED ANY FURTHER INFORMATION I WOULD BE MORE THAN WILLING TO SUPPLY YOU WITH THAT.

NHTSA ODI #10909354

Mileage unknown · Apr 13, 2016
SeatsSuspension

2 COMPLAINTS -1 I WAS DRIVING W/OUT A COAT ON & TURNED THE DRIVERS SEAT HEATER ON. THEN I STARTED FEELING A SHARP, STINGING PAIN ON MY BACK AND STARTED SMELLING THE BURNING OF WHAT TURNED OUT TO BE THE SEAT. I ALMOST HAD AN ACCIDENT TRYING TO GET WHAT I THOUGHT WAS A STINGING OR BITING INSECT OFF MY BACK. ONCE I REALIZED IT W…

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2 COMPLAINTS -1 I WAS DRIVING W/OUT A COAT ON & TURNED THE DRIVERS SEAT HEATER ON. THEN I STARTED FEELING A SHARP, STINGING PAIN ON MY BACK AND STARTED SMELLING THE BURNING OF WHAT TURNED OUT TO BE THE SEAT. I ALMOST HAD AN ACCIDENT TRYING TO GET WHAT I THOUGHT WAS A STINGING OR BITING INSECT OFF MY BACK. ONCE I REALIZED IT WAS THE SEAT HEATER, I TURNED THE SEAT HEATER OFF, ONLY TO FIND I NOW HAVE A HOLE IN MY SEAT. IF MERCEDES KNOWS THEY HAVE THIS PROBLEM, AS I HAVE COME TO READ HERE, THEY SHOULD WARN PEOPLE NOT TO USE THE HEATERS TO AVOID AN ACCIDENT AND AVOID HAVING A HOLE IN THE SEAT OR REPLACE THE SEAT AND HEATER. #2 THE FRONT AIR SUSPENSION SHOCK CRASHED ON THE FRONT OF MY CAR. MY CAR SAT IN THE DEALERSHIP FOR OVER A MONTH WAITING FOR MERCEDES TO REENGINEER THE AIR SHOCK. FINALLY, THEY TOLD US TO BUY AN AFTERMARKET AND THEY WOULD INSTALL. SHORTLY THEREAFTER REAR OF THE CAR WOULDN'T LEVEL AND THEY SAID IT WAS THE COMPRESSOR SO THAT WAS REPLACED. BUT STILL THE REAR WAS UNEVEN SO THEY REPLACED BOTH REAR SHOCKS AND STILL THE CAR WOULDN'T LEVEL. THEN THEY HAD THE NERVE TO TELL ME IT WAS THE FRONT AFTERMARKET AND THEY NOW NEEDED TO BE REPLACED. AND THE DEALER TOLD ME THE CAR WAS A 2007 SO WHAT SHOULD I EXPECT. I STOPPED GOING TO THE DEALER AND INSTEAD TOOK IT TO A PRIVATE SHOP. THEY REPLACED A SENSOR FOR A MINIMAL CHARGE AND THE CAR HAS BEEN FINE SINCE.

NHTSA ODI #10855376

100,101 miles · Mar 1, 2016
Electrical SystemSeatsFireInjury

WHILE DRIVING TO WORK THIS MORNING, I TURNED ON THE DRIVERS SIDE SEAT WARMER. LESS THAN THREE MINUTES LATER, I NOTICED A STRONG ODOR FOLLOWED BY A CONSIDERABLE AMOUNT OF SMOKE AND HEAT COMING FROM THE SIDE OF THE SEAT NEAREST THE DOOR. I FELT WHAT I THOUGHT WAS SOMETHING POKING ME IN THE LEFT REAR POCKET OF MY PANTS, AND BURNE…

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WHILE DRIVING TO WORK THIS MORNING, I TURNED ON THE DRIVERS SIDE SEAT WARMER. LESS THAN THREE MINUTES LATER, I NOTICED A STRONG ODOR FOLLOWED BY A CONSIDERABLE AMOUNT OF SMOKE AND HEAT COMING FROM THE SIDE OF THE SEAT NEAREST THE DOOR. I FELT WHAT I THOUGHT WAS SOMETHING POKING ME IN THE LEFT REAR POCKET OF MY PANTS, AND BURNED THE BACK OF MY KNUCKLE CHECKING FOR THE SOURCE OF THE HEAT. I IMMEDIATELY SHUT OFF THE HEATER AND PULLED OFF AT THE FIRST SAFE LOCATION. I EXITED THE VEHICLE (A PALL OF SMOKE FOLLOWED ME) AND KNOCKED THE SMOKING EMBERS OUT OF THE VEHICLE (A HOLE LARGER THAN A QUARTER IS BURNED IN THE SEAT). I ALSO NOTICED A HOLE WAS BURNED THROUGH MY PANTS. APPARENTLY, I CAME VERY CLOSE TO SIGNIFICANT PERSONAL INJURY, NOT TO MENTION THE FACT OF POSSIBLE LOSS OF CONTROL OF THE VEHICLE. WE CALLED THE DEALER AND THEY SCHEDULED THE CAR FOR NEXT MONDAY. RESEARCHING INTO THE ISSUE, MINE IS NOT AN ISOLATED CASE AS THERE ARE MULTIPLE CLASS ACTION LAWSUITS AND COMPLAINTS WITH THE NHTSA. OBVIOUSLY, THESE SEATS ARE DEFECTIVE, MERCEDES IS AWARE, THE PASSENGER SEAT IS NEXT AND IS NOT SAFE.

NHTSA ODI #10839320

150,000 miles · Sep 15, 2015
SteeringSuspensionUnknown Or Other

VEH SUSPENSION FELL, ALMOST LOST CONTROL

NHTSA ODI #10763950

93,000 miles · Aug 9, 2015
Suspension

2007 MERCEDES GL450 AIR SUSPENSION COMPRESSOR ALL THE SUDDEN BECAME NOISY POPPED THE HOOD TO CONFIRM NOISE AND IT WAS THE AIR SUSPENSION COMPRESSOR CAR WAS DRIVING FINE HAD TO GET TO MY DESTINATION ONLY 2 MILES AWAY THEN ALL OF THE SUDDEN BOOM I THOUGHT MY TIRE BLEW OUT CAR STARTED BOUNCING IN THE REAR BADLY PULLED OVER TO CHECK…

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2007 MERCEDES GL450 AIR SUSPENSION COMPRESSOR ALL THE SUDDEN BECAME NOISY POPPED THE HOOD TO CONFIRM NOISE AND IT WAS THE AIR SUSPENSION COMPRESSOR CAR WAS DRIVING FINE HAD TO GET TO MY DESTINATION ONLY 2 MILES AWAY THEN ALL OF THE SUDDEN BOOM I THOUGHT MY TIRE BLEW OUT CAR STARTED BOUNCING IN THE REAR BADLY PULLED OVER TO CHECK AND THE REAR OF THE CAR WAS ALL THE WAY DOWN SCAIRED THE HECK OUT OF ME GOT HOME CRAWLED UNDER CAR AND THE LEFT REAR AIR SUSPENSION BAG BLEW APART COMPLETELY NO WARNING AT ALL EXCEPT THE DISPLAY ON DASH STATED COMPRESSOR COOLING DOWN HOPE MERCEDES WILL SOMEHOW HELP WITH REPAIR AND LOOK INTO THIS FOR A SAFETY ISSUE AND POSSIBLY HELP WITH THE REPAIR SOMEHOW AS I SEE THE AIRPUMP WAS JUST CHANGED IN 2013 THANKS FOR LISTENING.

NHTSA ODI #10747324

117,000 miles · May 23, 2015
Electrical System

HEAD LIGHTS WENT OFF IN THE WHILE TRAVELING DUE TO DEFECTING WIRING SYSTEM. ACCORDING TO EXPERTS MB USED AN INFERIOR AND UNSUITABLE MATERIAL FOR THE INSULATION ON THE ELECTRICAL WIRES OF SOME OF THE GL450 MODELS. THIS INSULATION PREMATURELY DISINTEGRATES UNDER NORMAL USE CAUSING THE WIRES IT IS DESIGNED TO PROTECT AND INSULATE…

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HEAD LIGHTS WENT OFF IN THE WHILE TRAVELING DUE TO DEFECTING WIRING SYSTEM. ACCORDING TO EXPERTS MB USED AN INFERIOR AND UNSUITABLE MATERIAL FOR THE INSULATION ON THE ELECTRICAL WIRES OF SOME OF THE GL450 MODELS. THIS INSULATION PREMATURELY DISINTEGRATES UNDER NORMAL USE CAUSING THE WIRES IT IS DESIGNED TO PROTECT AND INSULATE, TO SHORT CAUSING MANY PROBLEMS.

NHTSA ODI #10721160

83,000 miles · May 19, 2015
Seats

TL* THE CONTACT OWNS A 2007 MERCEDES BENZ GL450. WHILE DRIVING AT APPROXIMATELY 20 MPH, THE FRONT DRIVER SIDE SEAT CAUGHT FIRE AND BURNED A HOLE IN THE SIDE OF THE SEAT WHILE THE HEATED SEAT FEATURE WAS ENGAGED. THE CONTACT TURNED THE HEATED SEAT FEATURE OFF AND THE FIRE WAS EXTINGUISHED. A POLICE REPORT WAS NOT FILED AND THERE …

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TL* THE CONTACT OWNS A 2007 MERCEDES BENZ GL450. WHILE DRIVING AT APPROXIMATELY 20 MPH, THE FRONT DRIVER SIDE SEAT CAUGHT FIRE AND BURNED A HOLE IN THE SIDE OF THE SEAT WHILE THE HEATED SEAT FEATURE WAS ENGAGED. THE CONTACT TURNED THE HEATED SEAT FEATURE OFF AND THE FIRE WAS EXTINGUISHED. A POLICE REPORT WAS NOT FILED AND THERE WERE NO INJURIES REPORTED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 83,000. THE VIN WAS UNAVAILABLE.

NHTSA ODI #10717306

60,000 miles · Feb 20, 2015
SeatsFire

TL* THE CONTACT OWNS A 2007 MERCEDES BENZ GL450. WHILE DRIVING APPROXIMATELY 35 MPH, THE FRONT DRIVER SIDE SEAT STARTED TO SMOKE AND BURNED THROUGH THE SEAT AND THE CONTACT'S CLOTHING. THERE WERE NO INJURIES. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC, WHO DIAGNOSED THAT THERE WAS A SHORTAGE IN THE HEATED SEAT ELEMENT. THE…

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TL* THE CONTACT OWNS A 2007 MERCEDES BENZ GL450. WHILE DRIVING APPROXIMATELY 35 MPH, THE FRONT DRIVER SIDE SEAT STARTED TO SMOKE AND BURNED THROUGH THE SEAT AND THE CONTACT'S CLOTHING. THERE WERE NO INJURIES. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC, WHO DIAGNOSED THAT THERE WAS A SHORTAGE IN THE HEATED SEAT ELEMENT. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 60,000.

NHTSA ODI #10689643

38,425 miles · Feb 11, 2015
Electrical SystemSteering

WHEN STARTING THE VEHICLE, THE HORN INTERMITTENTLY GOES OFF AND WILL NOT STOP. MUST TURN OFF THE CAR TO GET THE HORN TO STOP SOUNDING. THEN, MUST TURN ON THE CAR AND TURN OFF THE CAR A FEW TIMES TO MAKE IT STOP UNTIL IT ALL STARTS HAPPENING, RANDOMLY, AGAIN. TOOK THE VEHICLE TO THE MERCEDES DEALERSHIP WHERE CAR WAS PURCHA…

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WHEN STARTING THE VEHICLE, THE HORN INTERMITTENTLY GOES OFF AND WILL NOT STOP. MUST TURN OFF THE CAR TO GET THE HORN TO STOP SOUNDING. THEN, MUST TURN ON THE CAR AND TURN OFF THE CAR A FEW TIMES TO MAKE IT STOP UNTIL IT ALL STARTS HAPPENING, RANDOMLY, AGAIN. TOOK THE VEHICLE TO THE MERCEDES DEALERSHIP WHERE CAR WAS PURCHASE AND HAS BEEN ROUTINELY SERVICED AND THEY SAID THE PROBLEM WAS A FAULTY STEERING WHEEL SWITCH. THE ONLY WAY TO FIX THE ISSUE IS TO REPLACE THE ENTIRE STEERING WHEEL ITSELF. THE COST FOR AN IDENTICAL FACTORY WOOD STEERING WHEEL (WHICH IS WHAT THE CAR WAS PURCHASED NEW WITH) IS $3,000; IF WE OPTED FOR A LEATHER WRAPPED STEERING WHEEL INSTEAD THE COST WOULD BE $1500. THE OTHER WORKAROUND IS TO PULL THE FUSE AND NOT HAVE A HORN AT ALL. THIS IS A SAFETY ISSUE AND SHOULD NOT COST THIS MUCH TO HAVE A STEERING WHEEL SWITCH REPLACED! THIS IS ESSENTIAL, BASIC EQUIPMENT, AND STARTING HAPPENING ON A VEHICLE WITH LESS THAN 40,000 MILES. HAVE CONTINUED TO FOLLOW-UP WITH DEALER TO SEE IF THERE HAS BEEN A RECALL OR IF THEY WILL FIX, BUT MERCEDES IS NOT TAKING RESPONSIBILITY FOR THE PROBLEM. *TR

NHTSA ODI #10682780

Official recalls

2

24V298000 · Service Brakes, Hydraulic:power Assist:vacuum

Apr 26, 2024

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2006-2012 ML, GL, and R-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. Moisture may accumulate and cause corrosion in the brake booster housing unit, which can result in reduced brake performance or brake failure.

Consequence & remedy

Consequence: Reduced brake performance or brake failure can increase the risk of a crash.

Remedy: Owners are advised not to drive their vehicles until the remedy has been performed. Dealers will remove the rubber sleeve, inspect the brake booster, and as necessary, replace the brake booster. All repairs will be performed free of charge. Owner notification letters were mailed on May 24, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MMUSA's number for this recall is 2024050001/2. This recall is an expansion of previous recall number 22V-315.

22V315000 · Service Brakes, Hydraulic:power Assist:vacuum

May 9, 2022

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2006-2012 ML-Class, GL-Class, and R-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. Moisture may accumulate and cause corrosion in the brake booster housing unit, which can result in reduced brake performance or brake failure.

Consequence & remedy

Consequence: Reduced brake performance or brake failure can increase the risk of a crash.

Remedy: Owners are advised not to drive their vehicles until the remedy has been performed. Dealers will remove the rubber sleeve, inspect the brake booster, and as necessary, replace the brake booster. All repairs will be performed free of charge. Owner notification letters were mailed June 30, 2022. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's numbers for this recall are 2022050014, 2022050015 2022090006, & 2022090007.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

0

No exact-year investigations in this snapshot.