2008 Mercedes-Benz GL-Class Recalls, Problems & Maintenance

The 2008 Mercedes-Benz GL-Class has no open NHTSA recalls. Owners report 8 recurring issue clusters, led by “Airmatic air suspension component failure.” Mercedes-Benz alternates two service events: Service A (oil, filter, inspection) at roughly 10,000 miles or 1 year, then Service B (Service A plus brake fluid, cabin filter, and deeper checks) at roughly 20,000 miles or 2 years — the ASSYST Plus counter in the cluster tells you which is due. Oil must carry the MB-Approval number your engine specifies (commonly 229.5, or 229.71 for newer 0W-20 engines); 'meets or exceeds' marketing language is not an approval. Electric EQB and EQS models keep the A/B rhythm for inspections, brake fluid, and cabin filters — just without oil.

Save this car as:

No open recalls on file. NHTSA lists no unrepaired safety recalls for this year, make and model. A recall can be issued at any time, and a specific car can still have one open — check yours by VIN at nhtsa.gov/recalls.

Known issues & problems for this vehicle

What drivers and federal regulators have officially reported about the 2008 Mercedes-Benz GL-Class.

Reported to NHTSA

Airmatic air suspension component failure

SUSPENSION

13 NHTSA complaints · 2009-07 → 2018-11

“AIRMATIC SUSPENSION COMPONENTS CONTINUE TO FAIL ON THIS VEHICLE. AIRMATIC AIR PUMP WAS FIRST REPLACED DEC 2013 AT 71,000MI. FRONT SUSPENSION AIR SPRINGS FAILED AND SUSPENSION STRUTS HAVE BOTH BEEN REPLACED, OCT 2014 AT 85,000 MI”
— Owner report, NHTSA ODI #10822231
“GL550 SUSPENSION DROPS - MALFUNCTIONS EVERY YEAR (SUMMER TIME IN TEXAS) MY GL550-2008 WAS ABOUT 1 YEAR OLD IN AUGUST 2008) WITH 21K MILES. I WAS PARKED IN THE LOCAL LOWE'S PARKING LOT. WHEN I CAME BACK FROM THE STORE, THE CAR BODY WAS SITTING DIRECTLY ON THE TIRES”
— Owner report, NHTSA ODI #10749087
“THE AIRMATIC SUSPENSION HAS FAILED, THE TRUCK IS SITTING LOW THE AIR COMPRESSOR BLEW INTO PIECES FROM WORKING TO HARD. THIS IS A BIG PROBLEM WITH MERCEDES AIRMATIC SHOCKS ON MANY DIFFERENT MODEL... PLEASE HELP US ,THIS SHOULD BE A RECALL”
— Owner report, NHTSA ODI #11153532

Read all complaints on NHTSA →

Headlight wiring insulation and lamp assembly failure

ELECTRICAL SYSTEM, EXTERIOR LIGHTING

3 NHTSA complaints · 2013-10 → 2024-07

“A flash from the right headlight had occured. I thought it was the bulb, but turns out the ballist was shorted out. I removed the assembly from the vehicle to change the ballist and because I want to also change the lens on the assembly”
— Owner report, NHTSA ODI #11601540
“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”
— Owner report, NHTSA ODI #11318184
“VEHICLE WAS DRIVEN ON A HIGHWAY AT NIGHT WHEN WE SUDDENLY NOTICED NO VISIBILITY ON THE ROAD. INITIALLY WE THOUGHT THAT WE TURNED OFF THE HEADLIGHTS BY MISTAKE BUT IT WAS ON”
— Owner report, NHTSA ODI #10548851

Read all complaints on NHTSA →

Recall repair delay for brake line campaign 22V315000

SERVICE BRAKES, HYDRAULIC

4 NHTSA complaints · 2022-07 → 2023-12

“The contact owns a 2008 Mercedes-Benz GL450. The contact received notification of NHTSA Campaign Number: 22V315000 (Service Brakes, Hydraulic) and the contact had the vehicle towed to a local dealer”
— Owner report, NHTSA ODI #11562262
“The contact owns a 2008 Mercedes-Benz GL450. The contact stated that the vehicle had been at the dealer for almost two months”
— Owner report, NHTSA ODI #11480640
“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”
— Owner report, NHTSA ODI #11479622

Read all complaints on NHTSA →

Power seat lock and door latch failure

SEATS

5 NHTSA complaints · 2010-05 → 2014-11

“TL* THE CONTACT OWNS A 2008 MERCEDES BENZ GL450. THE CONTACT STATED THAT THE REAR SEAT POWER CONTROL BUTTON FAILED TO LOCK THE SEAT IN PLACE. THE CONTACT MENTIONED THAT THE CONTROL STILL HAD THE ABILITY TO MOVE THE SEAT FORWARD AND BACKWARDS”
— Owner report, NHTSA ODI #10655110
“THIRD ROW SEAT WOULD NOT LOCK IN POSITION, EITHER UP FOR SEATING OR DOWN FOR CARGO. THE LACK OF LOCKING EFFECTED THE MOTOR WHICH RAISES AND LOWERS THE SEAT TO LOCK POSITION. DEALER AND/OR MFG. CLAIMED THE SEAT FRAME IS PRONE TO BENDING. I HAD TO PAY TO HAVE IT FIXED”
— Owner report, NHTSA ODI #10550102
“WE WERE DRIVING THE CAR AT 35 MPH WITH A CHILD IN THE LEFT REAR SEAT; THE DOOR SUDDENLY OPENED UP BUT DID NOT HIT ANY OTHER VEHICLE. TOOK IT TO THE DEALER SERVICE FOR REPAIR AND THEY ADJUSTED THE DOOR LATCH. DAYS LATER, THE SAME HAPPENED AND THE DOOR OPENED BY ITSELF”
— Owner report, NHTSA ODI #10548850

Read all complaints on NHTSA →

Trailer hitch recall campaign 08V242000 not honored

UNKNOWN OR OTHER

2 NHTSA complaints · 2018-03 → 2018-07

“THE TRAILER HITCH HAS BEEN RECALLED NHTSA CAMPAIGN NUMBER 08V242000 : MB RECALL # 2008-050004 MB TECHNICAL SERVICE BULLETIN # 2008050004C”
— Owner report, NHTSA ODI #11111446
“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”
— Owner report, NHTSA ODI #11078793

Read all complaints on NHTSA →

Power steering hydraulic assist failure and fluid leak

ENGINE

33 NHTSA complaints · 2010-05 → 2025-08

“The contact owns a 2008 Mercedes-Benz GL450. The contact stated while driving approximately 10 MPH and approaching a stop light, an unknown "malfunction" warning light illuminated”
— Owner report, NHTSA ODI #11461629
“WAS NOTIFIED BY MERCEDES DEALERSHIP THAT THE CAR HAD "POSSIBLE STEERING RACK CONTROL HEAD LEAKING. FLUID COULD BE SPATTER FROM RESERVOIR LEAKING." I WAS TOLD TO "REPLACE POWER STEERING RESERVOIR AND SEAL RING," WHICH I DID”
— Owner report, NHTSA ODI #10758913
“TL*THE CONTACT OWNS A 2008 MERCEDES BENZ GL450. THE CONTACT STATED THAT THE POWER STEERING MALFUNCTIONED WHILE HE WAS DRIVING AT 30 MPH AND THE VEHICLE BECAME UNCONTROLLABLE. THE VEHICLE CRASHED INTO A FIRE HYDRANT AND THE CONTACT SUFFERED MINOR INJURIES”
— Owner report, NHTSA ODI #10330803

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SRS airbag warning light and inadvertent inflation

AIR BAGS

2 NHTSA complaints · 2017-05 → 2017-09

“SUBJECT THE PASSENGER SIDE AIRBAG EXPLODE OR INFLATED INSIDE: ON AUGUST 30TH I PICKED UP MY CAR FROM MERCHEDISBENZ DEALER AFTER SERVICED. I STARTED THE CAR AND I AM ABOUT TO LEAVE DRIVING 5MPH AND I HEARED A BIG LOUD POP I DIDN'T EVEN LEAVE THE PREMISES YET”
— Owner report, NHTSA ODI #11021251
“TL* THE CONTACT OWNS A 2008 MERCEDES-BENZ GL450. BEFORE PURCHASING THE VEHICLE, THE CONTACT NOTICED THAT THE SRS AIR BAG WARNING INDICATOR ILLUMINATED. THE DEALER WAS NOTIFIED AND CLAIMED TO HAVE REMEDIED THE ISSUE”
— Owner report, NHTSA ODI #10983647

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Engine stall or shutdown while driving

ENGINE

7 NHTSA complaints · 2008-09 → 2018-12

“TL* THE CONTACT OWNS A 2008 MERCEDES-BENZ GL450. THE CONTACT BOUGHT THE VEHICLE TWO MONTHS AGO. WHILE DRIVING, THE VEHICLE SHUT OFF SUDDENLY. THE VEHICLE HAD TO BE TRAVELING AT A HIGH RATE OF SPEED IN ORDER TO BE COASTED SAFELY TO THE SIDE OF THE ROAD”
— Owner report, NHTSA ODI #11155953
“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”
— Owner report, NHTSA ODI #10787401
“VEHICLE MALFUNCTIONED FOR THE 5TH TIME SINCE JUNE 2017 WHILE DRIVING ON THE SURFACE STREET. SUV COMPLETELY SHUT DOWN WHILE DRIVING, LOSS OF STEERING AND DASHBOARD ILLUMINATES EVERY WARNING SIGNAL INCLUDING A BEEPING SOUND; GEARS SHUT DOWN AND SUV COMPLETELY STOPS WAS DRIVING”
— Owner report, NHTSA ODI #11052636

Read all complaints on NHTSA →

Source: NHTSA Office of Defects Investigation (ODI). Complaint data refreshed Sep 20, 2026. Investigation data refreshed Sep 20, 2026.

We display NHTSA's record with attribution; we don't editorialize on what these complaints mean for any specific vehicle.

Raw data + downloads for this vehicle →

Essential maintenance

Critical for safety and preventing major damage

Service A — Oil & Filter + Inspection

Every 10,000 mi

Every 10,000 miles or 12 months: oil and filter with MB-Approved oil, fluid top-offs, tire check, and inspection. AMG models driven hard: many owners service at 5,000-7,500 miles.

Estimated cost — typical U.S. ranges

Dealer

~$120–$160

Shop

~$85–$115

DIY

~$25–$55

Full synthetic costs more than conventional. 5-quart 0W-20 + filter is the typical bill.

Service B — Major Inspection

Every 20,000 mi

Every 20,000 miles or 2 years, alternating with Service A: everything in A plus brake-fluid replacement, cabin filter, and a deeper multi-point inspection of brakes, suspension, and driveline.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Most shops do this free with any paid service. A flashlight and 10 minutes covers the basics yourself.

Tire Rotation

Every 10,000 mi

Rotate at every Service A where the tire sizes allow. Many AMG and 4MATIC+ models run staggered widths that can't rotate front-to-rear — check your spec before paying for a rotation.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Often free at the shop where you bought the tires — worth asking before paying.

Brake Inspection

Every 10,000 mi

Checked at every A/B service via electronic pad-wear sensors. Replace sensors with pads. Heavy EQS models wear pads slowly (regen braking) but rotors can corrode from disuse — an inspection catches that.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Most shops do this free as a courtesy with any service. Don't pay separately if you can avoid it.

Brake Fluid

Every 20,000 mi

Replaced every 2 years as part of Service B — Mercedes schedules it on time, not miles, because DOT 4 fluid absorbs moisture regardless of driving.

Estimated cost — typical U.S. ranges

Dealer

~$180–$200

Shop

~$125–$140

DIY

~$10–$25

DOT 3 or 4 — match the cap. Vacuum bleeders make this a one-person DIY.

Important maintenance

Keeps your vehicle running smoothly and efficiently

Automatic Transmission Fluid (7G / 9G-Tronic)

Every 70,000 mi

Mercedes specifies fluid and filter service around 70,000 miles on most 7G- and 9G-Tronic gearboxes — check your year's sheet. Use only the MB-spec fluid for your transmission code; independent specialists often service at 60,000 on hard-driven cars.

Estimated cost — typical U.S. ranges

Dealer

~$330–$500

Shop

~$235–$355

DIY

~$60–$180

Some sealed transmissions have no dipstick — fill is precise and best left to a shop. Many drivers can still DIY drain-and-fill.

Spark Plugs

Every 60,000 mi

Most modern MB gas engines: plugs around 60,000 miles — AMG engines often sooner. Check your engine's sheet; twin-turbo V8 plug jobs are labor-heavy, so pair with other scheduled work.

Estimated cost — typical U.S. ranges

Dealer

~$285–$390

Shop

~$200–$275

DIY

~$25–$100

Iridium plugs cost more but last 100k+ miles. V6/V8 access varies wildly — some are tough.

Engine Air Filter

Every 40,000 mi

Replace around every 40,000 miles (twin-filter setups on V6/V8 engines double the parts bill). Inspected at every Service B.

Estimated cost — typical U.S. ranges

Dealer

~$60–$95

Shop

~$45–$70

DIY

~$15–$40

5-minute job on most cars; the airbox lid usually has clips, no tools needed.

Recommended maintenance

Extends the life of your vehicle and improves comfort

Combination / Dust Filter

Every 20,000 mi

Replaced with every Service B. Models with the ENERGIZING air package use a higher-grade filter — priced accordingly.

Estimated cost — typical U.S. ranges

Dealer

~$60–$95

Shop

~$45–$70

DIY

~$15–$40

Usually behind the glovebox. Shops charge labor for a 10-minute job — easy DIY win.

Engine Coolant

On condition / lifetime

MB-spec coolant is long-life (typically ~10 years / 150,000 miles on the sheet). Refresh only with MB 325/326-spec coolant — the wrong chemistry attacks aluminum and head gaskets.

Estimated cost — typical U.S. ranges

Dealer

~$285–$330

Shop

~$200–$235

DIY

~$25–$60

Use the manufacturer-specified coolant — wrong color/chemistry can damage the cooling system.

12V & Auxiliary Battery

Every 25,000 mi

Test annually after year 3. Most modern Mercedes carry a second auxiliary battery; a weak one triggers cascading warning messages long before a no-start. EQ models also depend on the 12V system to boot.

Estimated cost — typical U.S. ranges

Dealer

~$225–$390

Shop

~$160–$280

DIY

~$130–$250

Most auto-parts stores test and install batteries free with purchase. Skip the dealer markup.

Fatal crash history & reported problems

Occupant deaths in fatal crashes (FARS)

11 crashes 1990–2024

How the 11 occupant deaths break down

3

driver deaths

8

passenger deaths

11

occupant deaths

Crash years covered: 1990–2024 This model year first appears in 2008 crashes. Older models have had more years on the road to appear in these crashes, so a higher count here does not by itself mean a vehicle is less safe.

FARS counts every occupant death in a fatal crash, whatever the cause — it does not mean the vehicle was at fault or defective. Counts are not adjusted for how many of each vehicle are on the road. How to read this number

FARS 2024 data is an annual report file. NHTSA revises these records when the final file is published, so this count can change.

Why we show driver deaths too

Every vehicle has exactly one driver seat, so driver deaths line up fairly when you compare one model to another. Occupant deaths include passengers, so a three row SUV can show a higher number than a two seat car simply because it carries more people.

Both figures are plain counts, not rates. A rate would need to know how many of each vehicle are on the road, and that registration data is not public, so we do not publish rates or scores of any kind.

IIHS publishes driver death rates using this same driver only idea, paired with a registered vehicle years denominator we do not have. Their rates and these counts answer different questions, so do not read either number here as a safety rating.

Owner-reported problem signals

Separate from the federal fatality data above: complaints owners filed with NHTSA about this year and model. These are reports of problems, unverified, and are counted here only as signals.

7

complaints mentioning a crash

1

complaints mentioning a fire

Reviewed known issues for this vehicle

Typical U.S. ranges. Actual quotes vary by shop, parts choice, and vehicle condition.

How we estimate: Dealer = OEM parts × 1.4 + labor × $165/hr. Shop = parts + labor × $115/hr. DIY = parts only.

This maintenance schedule for the 2008 Mercedes-Benz GL-Class reflects Mercedes-Benz's published service intervals and the ASSYST Plus (Service A / Service B) system. Your actual service needs may vary based on driving conditions, climate, and vehicle usage. Always consult your owner's manual for model-specific recommendations.