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2008 Mercedes Benz ML320 problems

The most common problem on the 2008 Mercedes Benz ML320 is lights. Its complaint count is close to a typical ML320 model year.

Typical yearClose to a typical year
Year score
73/100
Owner complaints
21
Recalls
2
Service bulletins
82
Worst area
Lights
Fuel economy
21mpg

The worst 2008 Mercedes Benz ML320 problems

Ranked by number of owner complaints. Mileage and cost come from what owners wrote.

  • Lights
    6
  • Electrical
    4
  • Engine
    4
  • Steering
    3
  • Acceleration
    2

Problems by type

Tap a problem to see which part fails, at what mileage and in which other years.

  • Lights
    6
  • Electrical
    4
  • Engine
    4
  • Steering
    3
  • Acceleration
    2
  • Seat belts
    2
  • Airbags
    1
  • Body
    1
  • Brakes
    1
  • Suspension
    1
  • Transmission
    1
  • Visibility
    1

Recalls 2

Service brakes, hydraulic: power assist: vacuumReported April 26, 2024 · 15,604 vehicles affected
What is wrong
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.
Risk
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.

Recall number 24V298000 · Recall details

Service brakes, hydraulic: power assist: vacuumReported May 9, 2022 · 350,294 vehicles affected
What is wrong
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.
Risk
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.

Recall number 22V315000 · Recall details

See all 2 recalls for the 2008 Mercedes Benz ML320

Technical service bulletins for the 2008 Mercedes Benz ML320 82

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

See all 82 bulletins for the 2008 Mercedes Benz ML320

2008 Mercedes Benz ML320 fuel economy

Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.

EngineDriveCityHighwayCombined
3.0L 6‑cyl Diesel4WD182421

What 2008 Mercedes Benz ML320 owners say

Most recent owner complaints, unedited.

Filed Aug 24, 2024 · Brakes, Lights · NC

Right rear brake light inoperative even with new bulb. Dash warning light shows this light not working .08

Filed Mar 7, 2022 · Electrical, Lights · FL

The rear turn signals and brakes lights are not working properly, even with new bulbs and replacement of the bulbs base case the turn signal still blinking as if the bulb is burned and the brake light doesn't work simultaneously it work when the turn signal is not used. The car was took to the dealer several times and the problem continue the same.

Filed Sep 1, 2021 · AL · crash · 2 injuries

8/1/2021 accident involving 2008 Mercedes ML320 CDI >recall faulty tow hitch< Mercedes has refused to conduct an investigation and resolve these damages. While injured (both myself and 9 yr old son w/ a heart condition), no serious injuries or fatalities happened during the accident. It resulted in totaling the vehicle and our camper. Recall doc's show that Mercedes of New Orleans completed the recall; however, they either falsified disclosing they did the repair or conduct poor workmanship when repairing the hitch. While driving the hitch broke/cracked resulting the camper flipping over and slamming into the truck. I have photos along w/ consulted w/ certified welder confirming the weld was not properly done. More photos if needed.

Filed Aug 6, 2021 · AL · crash · 2 injuries

Tow hitch weld broke resulting in vehicle accident. Interstate wreck, could have killed myself, my 9 yr old and 4 dogs along w/ any other vehicles that could have struck us.

Filed Dec 31, 2018 · Lights · 200,000 miles · MI

While driving the mercedes ml320 at night the vehicle suddenly posted the following message "battery voltage is too low. Please start the engine. Otherwise, comand will shut off in 3 minutes." the engine was running at this time and the vehicle was in motion. A short time later the headlights on the vehicle suddenly went out. I turned on the flashers and they also went out in a short time. The vehicle was parked and would not re-start. About 15 minutes went by and the vehicle was started and fully functional. No signs of codes or reduced lighting performance. Also, no signs or reduced battery perfomance was observed.

Filed Feb 6, 2018 · Body, Lights · 108,000 miles · FL

Tl* the contact owns a 2008 mercedes-benz ml320. The contact stated that the liftgate failed to open. In addition, the rear middle brake light failed to illuminate. The contact called mercedes-benz of fort lauderdale at (954) 949-0623 (located at 2411 s federal hwy, fort lauderdale, fl 33316) and was informed that the vehicle was not included in a recall. The vehicle was not taken to a dealer or an independent mechanic to determine the cause of the failure. The manufacturer was not notified of the failures. The approximate failure mileage was 108,000.

Filed Feb 6, 2018 · Electrical · 107,000 miles · FL

My 2008 is having the same problem as this 2009. Mercedes benz is recalling 16,130 my 2009 m-class w164 passenger vehicles equipped with the optional power lift gate. As a result of a faulty seal around the rear tail lamp assembly, water may enter the rear compartment containing the spare tire. Water contamination of the control unit for the power lift gate can result in disabling of the power lift gate motor. Hazard:water will cause a short circuit which could lead to a fire. Remedy:dealers will replace the seal of the rear tail lamp assembly with a thicker one and reposition the affected power lift gate control unit inside the chassis. This service will be performed free of charge. The recall is expected to begin during april 2009. Owners may contact mercedes-benz at 1‑800‑367‑6372. Additional info:mercedes benz recall no. 2009030003.owners may also contact the federal safety agency's

Filed Mar 21, 2016 · Electrical · 89,000 miles · SC

Tl* the contact owns a 2008 mercedes-benz ml320. While driving approximately 30 MPH, the engine stalled without warning. The vehicle restarted, but the failure recurred twice. The second time the failure recurred, the vehicle did not restart. The contact also stated that the horn sounded without being prompted. The vehicle was towed to the contact's residence where it was not diagnosed nor repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 89,000.

Filed Jan 5, 2016 · Electrical, Lights · 127,555 miles · OR

Water entered the vehicle (rain) standing water in the spare tire area of the car. The windshield wiper quit working. Got error messages on the dash rear hatch open, checked rear hatch was closed and it would not open either manually or using the remote opener or the button in the car, multiple error messages rear brake lights left right side and trailer, error message SRS failure, fuel gauge quit working, locks not working..... Parked the car it was raining unable to drive, the next day drove it to a mechanic who found 1" of standing water in the spare tire well. The lift gate controller is in the well and was wet and not functioning in also took out another controller part cost $978.61 labor 474.50 I did not have time for the mechanic to find the source of the leak he had the car 4 days before the new years day weekend (out of town 250 miles from home) took it to the mercedes dealer they said the 2009 year model had a leaky seal at the turn signals that had a recall but it did not include my model year although it sounds like the same problem. The car was driven in the rain I did not encounter flooded roads just rainfall. Mercedes was unwilling to help in any way.

Filed Feb 13, 2015 · Engine · 125,781 miles · WI

A seal for the engine oil cooler failed. The cooler leaked oil onto the under-engine pan and was not detected as a leak on the garage floor. Had the cooler failed completely it would have created a safety issue in traffic. The seal failure appears to be a common problem but should not occur under normal use, which is how this vehicle is used.

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Questions about the 2008 Mercedes Benz ML320

Is the 2008 Mercedes Benz ML320 reliable?

Owners have filed 21 complaints about the 2008 Mercedes Benz ML320, close to a typical ML320 model year.

What is the 2008 Mercedes Benz ML320 year score?

The 2008 Mercedes Benz ML320 scores 73 out of 100 (average). The score compares it with the other model years of the Mercedes Benz ML320: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.

What is the most common problem with the 2008 Mercedes Benz ML320?

Lights, with 6 complaints. Next is electrical (4).

How many recalls does the 2008 Mercedes Benz ML320 have?

2 recalls, covering service brakes, hydraulic.

What gas mileage does the 2008 Mercedes Benz ML320 get?

Official estimates for the 2008 Mercedes Benz ML320 range from 21 mpg combined. The most efficient version (3.0L 6-cyl diesel, 4WD) gets 18 city and 24 highway.

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