MY CAR CAUGHT ON FIRE WHILE DRIVING ON HIGHWAY 580 EASTBOUND IN LIVERMORE, CA. OTHER DRIVERS WERE FLAGGING ME TO PULL OVER. MY CAR IS TOTALLY DESTROYED. IT TOOK 3 FIRE TRUCKS AND 1500 GALLONS OF WATER AND FOAM TO PUT OUT. THERE WAS JUST UNDER 1/2 TANK OF GAS. *TR
2007 Mercedes Benz GL450
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all GL450 years →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.
Electrical System complaints
27 reportsMY MB GL450 2007 CARS HORN STARTED TO RANDOMLY GO OFF FOR NO REASON MULTIPLE TIMES. THIS HAPPENED THREE TIMES, ONCE WHEN I STARTED THE CAR IN GROCERY STORE PARKING LOT, SECOND TIME WHILE I WAS DRIVING AND SCARED OTHER MOTORIST TO PULL OVER. ONLY WAY I COULD MAKE IT STOP WAS TO PULL OVER AND TURN OFF THE CAR. WHEN I TURNED O…
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MY MB GL450 2007 CARS HORN STARTED TO RANDOMLY GO OFF FOR NO REASON MULTIPLE TIMES. THIS HAPPENED THREE TIMES, ONCE WHEN I STARTED THE CAR IN GROCERY STORE PARKING LOT, SECOND TIME WHILE I WAS DRIVING AND SCARED OTHER MOTORIST TO PULL OVER. ONLY WAY I COULD MAKE IT STOP WAS TO PULL OVER AND TURN OFF THE CAR. WHEN I TURNED ON THE CAR THE HORN STARTED AGAIN, TURNED OFF, TURNED ON DROVE TO REPAIR SHOP. REPAIR SHOP TOLD ME THE SPRING FOR THE HORN HAD WARN OUT AND THE ELECTRONIC CONSOLE IN THE STEERING WHEEL WAS SHOT. TOLD ME YOU CAN'T ORDER THE PART ANYMORE BECAUSE IT WAS DISCONTINUED, SO, WE HAVE TO ORDER A WHOLE NEW STEERING WHEEL FOR $1,200 PLUS $600 IN LABOR. *TR
HORN STARTS HONKING BY ITSELF. WILL SOUND FOR 30 SECONDS OR MORE AND THEN STOP. OTHERWISE THE HORN DOES NOT WORK.. HORN CONTINUES TO RANDOMLY SOUND WHILE DRIVING. VERY UNSAFE AS IT STARTLES OTHER DRIVERS. TOOK TO DEALER WHO DIAGNOSED THE PROBLEM AS A BROKEN HORN SENSOR. HOWEVER TO FIX, THEY SAID THEY NEEDED TO REPLACE THE STEERI…
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HORN STARTS HONKING BY ITSELF. WILL SOUND FOR 30 SECONDS OR MORE AND THEN STOP. OTHERWISE THE HORN DOES NOT WORK.. HORN CONTINUES TO RANDOMLY SOUND WHILE DRIVING. VERY UNSAFE AS IT STARTLES OTHER DRIVERS. TOOK TO DEALER WHO DIAGNOSED THE PROBLEM AS A BROKEN HORN SENSOR. HOWEVER TO FIX, THEY SAID THEY NEEDED TO REPLACE THE STEERING WHEEL. TOTAL PRICE IS $1300 WITH LABOR. AT THIS PRICE IT WILL BE A WHILE BEFORE IT CAN BE FIXED. THIS APPEARS TO BE A COMMON PROBLEM WITH THIS MODEL. A GOOGLE SEARCH TURNED UP SEVERAL SIMILAR COMPLAINTS ON VARIOUS FORMS. AT THE $1,300 COST, THERE MUST BE SEVERAL MERCEDES GL 450 'S DRIVING AROUND WITH FAULTY HORNS. *TR
DRIVER SIDE SEAT CAUGHT FIRE AFTER HEATED SEAT BUTTON DEPRESSED ON THE DASH. APPROXIMATELY THREE MINUTES HAD ELAPSED WHEN SEAT BEGAN TO SMOKE. THE SMOKE CONTINUED AS THE SEAT CAUGHT FIRE ON THE FRONT LEFT PANEL OF THE BACK PORTION OF THE SEAT. THE FIRE PROJECTED THROUGH THE SEAT, BURNING A HOLE THROUGH THE SEAT ABOUT TWO INCHES …
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DRIVER SIDE SEAT CAUGHT FIRE AFTER HEATED SEAT BUTTON DEPRESSED ON THE DASH. APPROXIMATELY THREE MINUTES HAD ELAPSED WHEN SEAT BEGAN TO SMOKE. THE SMOKE CONTINUED AS THE SEAT CAUGHT FIRE ON THE FRONT LEFT PANEL OF THE BACK PORTION OF THE SEAT. THE FIRE PROJECTED THROUGH THE SEAT, BURNING A HOLE THROUGH THE SEAT ABOUT TWO INCHES IN DIAMETER. DRIVER'S SWEATER WAS SINGED BY THE FLAME. *TR
MY CAR WAS PARKED IN THE GARAGE. 90 MINUTES LATER ENGINE FIRE BEGAN THAT NEARLY BURNED DOWN MY GARAGE AND HOUSE. NO PROBLEMS WERE NOTICED IN THE CAR 60 MINUTES AFTER PARKING. FIRE OCCURRED 60 TO 90 MINUTES AFTER PARKING. *TT
1. POOR BATTERY LIFE AND ALTERNATOR LIFE IN 2007 GL 450 2. ENGINE DIED AND ELECTRONICS DIED AT HIGHWAY SPEEDS, REPORTED TO MERCEDES BENZ CORPORATION WITH NO RESOLVE.3. LIFT GATE CONSTANTLY MALFUNCTIONS AND DOES NOT CLOSE. *TR
THIS COMPLAINT IS IN REGARDS TO A 2007 MERCEDES GL450. I HAVE HAD ELECTRICAL PROBLEMS WITH THIS CAR FROM THE VERY BEGINNING. 14 DAYS AFTER PURCHASING VEHICLE WENT INTO THE SHOP. ON 2 OCCASIONS MY CAR SHUT COMPLETELY DOWN ON BUSY ROAD WAYS AND BOTH TIMES MERCEDES DID NOT WANT TO FIX THE CAR. MERCEDES CLAIMED A DRINK WAS SPIL…
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THIS COMPLAINT IS IN REGARDS TO A 2007 MERCEDES GL450. I HAVE HAD ELECTRICAL PROBLEMS WITH THIS CAR FROM THE VERY BEGINNING. 14 DAYS AFTER PURCHASING VEHICLE WENT INTO THE SHOP. ON 2 OCCASIONS MY CAR SHUT COMPLETELY DOWN ON BUSY ROAD WAYS AND BOTH TIMES MERCEDES DID NOT WANT TO FIX THE CAR. MERCEDES CLAIMED A DRINK WAS SPILT IN THE CAR ON A COMPUTER SYSTEM UNDER THE FRONT PASSENGER SEAT. ON THE FIRST OCCASION LIGHTS STARTED FLASHING AND WITH IN 30 SECONDS THE CAR LOST ALL POWER AND HAD TO BE PUSHED OFF THE ROAD WAY. ALL OF THE DOORS WERE LOCKED UP WE FINALLY MANAGED TO CLIMB OUT THE DRIVERS SIDE. I HAD 3 KIDS IN MY CAR AND THE THOUGHT OF NOT BEING ABLE TO GET OUT OF THIS CAR REALLY CONCERNS ME. ON THE SECOND OCCASION WHICH WAS APPROXIMATLY 2 WEEKS LATER THE CARS WINDOWS STARTED ROLLING UP AND DOWN AND SMOKING. THE CAR THEN SHUT DOWN ON US AND AT THIS POINT WAS SMOKING SO BAD MY KIDS WERE COUGHING. THE CAR THEN JUMPED OUT OF PARK. AGAIN THE CAR WAS TOWED IN THE NEXT DAY AND MERCEDES SAID WE SPILT A DRINK IN THE CAR THAT SHUT IT DOWN. MERCEDES REFUSED TO FIX THE CAR EVEN THOUGH IT WAS STILL UNDER WARRANTY. THIS CAR IS NOT SAFE. I HAVE DONE MUCH RESEARCH AND HAVE TALKED TO SEVERAL PEOPLE WHO HAVE HAD THE SAME PROBLEMS AND HAVE BEEN TOLD THEY SPILT A DRINK AND THAT IS WHY IT SHUT DOWN. ONE MAN'S CAR CAUGHT ON FIRE IN A DRIVEWAY ANOTHER'S GL WAS PARKED IN THE GARAGE AND BURNT HIS HOUSE DOWN KILLING HIS ANIMALS. THE LIST GOES ON AND MERCEDES WILL NOT RECALL THIS MODEL. *TR
Official recalls
224V298000 · 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
0No exact-year investigations in this snapshot.
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