RoadVitals

2003 Mercedes-Benz ML350

Recalls, owner-reported complaints, investigations and safety data

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
25
Latest Dec 22, 2023
Safety recallsA safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.
0
InvestigationsNHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
0
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
4
2 injuries, 0 deaths reported

Overview

Our database contains 25 NHTSA owner-reported complaints for the 2003 Mercedes-Benz ML350, most frequently naming the steering, engine and heating & air conditioning categories. 62 manufacturer communications are on file.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

What owners report

Complaints grouped by the component NHTSA recorded

  • Steering1137.9%
  • Engine620.7%
  • Heating & air conditioning413.8%
  • Electrical413.8%
  • Interior & seats310.3%
  • Other / unspecified13.4%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Safety recalls

No recalls in our database for this model year

That does not guarantee a specific vehicle is unaffected — recalls are issued against VINs, and new campaigns are announced regularly. Check a VIN on NHTSA.gov.

Recent owner complaints

Reports submitted to NHTSA, shown in the owner's own words

Filed Dec 22, 2023

The Floor Mats I received for my vehicle covered a portion of my accelerator pedal and would when up into the back above the pedal and to the right of it and would get caught and force my accelerator pedal to stay down. I told the company of their design flaw, and they said would not do anything about it. If I wanted to send it back it would cost more than the pads were worth. I paid $189.95. I got PayPal involved and if I paid the shipping cost to send them back they would rebate me the money that I paid. That's only if the mats are in perfect condition when they receive them. So it cost hours of BS and $60 so I get back at least $129. But with that said I felt you should know that they are selling and sending things not made for the cars they promise they will be for.

NHTSA ID
11561486
Incident
Nov 27, 2023
Steering
Filed Dec 26, 2018

TL* THE CONTACT OWNS A 2003 MERCEDES-BENZ ML350. WHILE DRIVING 35 MPH, THE STEERING WHEEL BECAME DIFFICULT TO MANEUVER WHEN TURNED TO THE LEFT. THE CONTACT STATED THAT THE VEHICLE EXPERIENCED THE SAME SYMPTOMS AS LISTED IN NHTSA CAMPAIGN NUMBER: 08V465000 (STEERING). THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE POWER STEERING FAILED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 175,000.

NHTSA ID
11163528
Incident
Nov 22, 2018
Mileage
175,000 mi
Steering
Filed Jun 9, 2016

I RECENTLY HAD TO REPLACE THE POWER STEERING PUMP, RESEVIOUR, AND HOSE AFTER LOOSING CONTROL WHILE DRIVING ON THE HIGHWAY. IMMEDIATELY AFTER REFILLING WITH FLUID ALL THE CONTENTS RAN RIGHT OUT. I DO SEE THAT THERE WAS A RECALL FOR THIS PROBLEM IN 2008, BUT I DID NOT TAKE OWNERSHIP OF THIS VEHICLE UNTIL 2/15. IS THERE ANY WAY POSSIBLE FOR THIS PROBLEM TO BE FIXED UNDER THE RECALL?

NHTSA ID
10873347
Incident
May 10, 2016
Mileage
136,690 mi
Steering
Filed Jun 1, 2016

TL* THE CONTACT OWNS A 2003 MERCEDES BENZ ML350. THE CONTACT STATED THAT THE STEERING WHEEL SEIZED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO REPLACED THE POWER STEERING PUMP ASSEMBLY TWICE BUT THE FAILURE RECURRED. THE STEERING WHEEL WAS EXTREMELY TIGHT AND THE VEHICLE WAS TAKEN BACK TO THE INDEPENDENT MECHANIC. THE APPROXIMATE FAILURE MILEAGE WAS 99,000.

NHTSA ID
10871855
Incident
Aug 10, 2009
Mileage
99,000 mi
ElectricalEngine
Filed Apr 22, 2016

RANDOM LOSS OF POWER ' (THE ENTIRE PANEL LIGHTS UP) AS THE CAR SUDDENLY AND SLOWLY POWERS OFF WHILE TAKING OFF FROM A DROP, DRIVING, BREAKING, AND TURNING, COMING TO A STOP AND ON THE HIGHWAY. IN THE PAST 6 MONTHS WE HAVE SPENT MORE THAN 3800.00 FOR CAR REPAIR ON THE ML 350. IT SHUTS OFF MORE AND MORE FREQUENTLY. SO MUCH SO WE DO NOT ALLOW OUR DAUGHTER TO DRIVE UNLESS I AM THERE AND NOW NOT EVEN THEN UNTIL WE HAVE HAD IT FIXED FOR THE 4TH TIME (WE THOUGHT) AFTER CRANK SHAFT, SPARK PLUGS AND NOW ELECTRICAL WORK WE ARE AT A TOTAL LOSS. THIS ISSUE IS NOT ISOLATED BUT MERCEDES BENZ HAS HAD OTHER REPORTS OUR AND OTHERS ' NOT REPAIR / OR RECALLED BUT IT SEEMS MAJOR TO OUR FAMILY ' AS MY ONLY VEHICLE AND OTHER OWNER THAT HAVE INVESTED IN THIS MAKE.

NHTSA ID
10861000
Incident
Oct 12, 2015
ElectricalEngine
Filed Sep 3, 2015

WITHIN THE PAST 8 MONTHS I HAVE TAKEN MY CAR TO THE DEALERSHIP FOUR TIMES WITH THE ISSUE RELATING ENGINE SHUT OFF AND CHECK ENGINE LIGHT COMES ON. I WAS TOLD THE CRANKSHAFT NEEDED TO BE REPLACED TWO TIMES AND AS OF TODAY THE PROBLEMS REMAINS. MERCEDES BENZ HAS ACKNOWLEDGED THIS IS PROBLEM IN THIS VEHICLE BUT HAS NOT ADDRESSED IT. I FEAR DRIVING THIS VEHICLE WITH MY CHILDREN IT SHUT OFF IN THE MIDDLE OF THE HIGHWAY AT ONE POINT AND THEY HAVEN'T ADDRSSED IT. I'VE SPENT $4500 TO REPAIR AND THEY CANNOT RESOLVE THE PROBLEM AND I'M NOT CERTAIN THEY KNOW HOW.

NHTSA ID
10761160
Incident
Sep 2, 2015
Mileage
97,000 mi
Steering
Filed Nov 21, 2014

I HAVE A 2003 ML350 SUV. I BOUGHT MY CAR USED. I WAS WONDERING IF THERE WERE ANY RECALLS REGARDING STEERING. I HAVE REPLACED ONE RACK AND PIN WHICH I BELIEVE WAS USED. NOW I AM IN NEED OF ANOTHER ONE. *TR

NHTSA ID
10660076
Incident
Nov 21, 2014
Interior & seats
Filed Aug 9, 2014
1 injury reported

FRONT DRIVERS SIDE SEAT, BURNS WHEN HEATER IS TURNED ON. BURN SMELL, BURNED SKIN OF DRIVER. HAS THERE BEEN A RECALL ON THIS. I HAVE READ OF MANY INSTANCES OF THIS SAME COMPLAINT ON THE INTERNET. MERCEDES NEEDS TO REPLACE SEAT. *TR

NHTSA ID
10621045
Incident
Aug 1, 2007
Mileage
40,000 mi

Manufacturer communications

A bulletin sent by a manufacturer to its dealers. Not a recall, and repairs are not necessarily free.

LI35.30-P-058566

POWER TRAIN

Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The noise is heard once in each instance when changing direction of travel. Note: Sound file in attachment Cause If the complaint is eliminated by experimentally loosening the outboard collar nut (by 1 turn), the problem is due to cracking of the microweld between the wheel bearing inner race and the joint housing of the side shaft. Note: The collar nut must always be replaced after being loosened. See also LI33.20-P-078406 Remedy Coat contact surface of side shaft with wheel bearing with Molykote paint. To do this, proceed as follows: 1. Remove side shafts 2. Clean contact surface A (see image file in attachment "Outer joint housing before") before coating with Molykote, using "spirit" (free of dust and grease) 3. Coat contact surface A (see image file in attachment "Outer joint housing after") with Molykote and leave to dry for "one hour" in removed condition 4. Reinstall side shafts Note: Before using the antifriction coating (Molykote), stir it or shake it thoroughly for (at least 1 minute).

LI82.10-P-078301

EXTERIOR LIGHTING

Complaint Headlamp, front fog lamp leaky or fogged. Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to any technical impairment of the headlamp. If a pressure compensation diaphragm is fitted in the housing cover, then the lamp unit is a "closed system". Remedy Headlamp: Remedy 1 Clearing fogged/condensed LED headlamps: 1. Drive vehicle into workshop (temperature higher than +18 °C/+64.4 °F) and connect the exhaust extraction. Note: Do not perform an engine wash before the defogging test. 2. Switch off the engine and connect battery support via a charger. 3. Open the hood. 4. Switch on the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). Clearing of fogged/condensed LED headlamps and LED rear lamps on electric vehicles: 1. Drive the vehicle into the workshop (temperature higher than +18 °C/+64.4°F). 2. Connect battery backup via a charger. 3. Open the front-end flap and ensure sufficient ventilation. 4. Switch on the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). Clearing fogged/condensed halogen/xenon headlamps: 1. Drive the vehicle into the workshop (temperature higher than +18 °C/+64.4°F). Note: Do not perform an engine wash before the defogging test. 2. Switch off the engine. 3. Open the hood. 4. Switch off the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). Note: If there is no visible reduction in condensation, check the headlamp for malfunctions. (see Remedy 2) It is not physically possible to defog the headlamps completely. Fogging does not impair the operation or the service life of the headlamp. Note: Only implement Remedy 1 for model series 463 (from model year 2018) and model series 465. Remedy 2 A defective headlamp can be identified as follows: 1. Check the headlamp for external damage and that the cover caps and the diaphragm are correctly seated. 2. Check the electrical connectors of the plugs and pins. 3. Check for leak tightness according to LI82.10-P-078307. The test can only be conducted on headlamps. 4. If the headlamp or the rear lamp has any external damage, replace the component part in accordance with the WIS instructions. Note: External damage to the headlamp/rear lamp or faulty seating of the cover caps does not present a warranty or goodwill case. Note: With headlamps, it is possible to install desiccant packs if the problem occurs repeatedly. • Open ventilation system LI82.10-P-078302 • Closed ventilation system LI82.10-P-078304

LI82.10-P-078301

EXTERIOR LIGHTING

Complaint Headlamp, front fog lamp leaky or fogged Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to any technical impairment of the headlamp. If a pressure compensation diaphragm is fitted in the housing cover, then the lamp unit is a "closed system". Remedy Headlamp: Remedy 1 Clearing fogged/condensed LED headlamps: 1. Drive vehicle into workshop (temperature higher than +18 °C/+64.4 °F) and connect the exhaust extraction. Note: Do not perform an engine wash before the defogging test. 2. Switch off the engine and connect battery support via a charger. 3. Open the hood. 4. Switch on the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). Clearing of fogged/condensed LED headlamps and LED rear lamps on electric vehicles: 1. Drive the vehicle into the workshop (temperature higher than +18 °C/+64.4°F). 2. Connect battery backup via a charger. 3. Open the front-end flap and ensure sufficient ventilation. 4. Switch on the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). Clearing fogged/condensed halogen/xenon headlamps: 1. Drive the vehicle into the workshop (temperature higher than +18 °C/+64.4°F). Note: Do not perform an engine wash before the defogging test. 2. Switch off the engine. 3. Open the hood. 4. Switch off the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). Note: If there is no visible reduction in condensation, check the headlamp for malfunctions. (see Remedy 2) It is not physically possible to defog the headlamps completely. Fogging does not impair the operation or the service life of the headlamp. Note: Only implement Remedy 1 for model series 463 (from model year 2018) and model series 465. Remedy 2 A defective headlamp can be identified as follows: 1. Check the headlamp for external damage and that the cover caps and the diaphragm are correctly seated. 2. Check the electrical connectors of the plugs and pins. 3. Check for leak tightness according to LI82.10-P-078307. The test can only be conducted on headlamps. 4. If the headlamp or the rear lamp has any external damage, replace the component part in accordance with the WIS instructions. Note: External damage to the headlamp/rear lamp or faulty seating of the cover caps does not present a warranty or goodwill case. Note: With headlamps, it is possible to install desiccant packs if the problem occurs repeatedly. • Open ventilation system LI82.10-P-078302 • Closed ventilation system LI82.10-P-078304

LI82.10-P-078301

EXTERIOR LIGHTING

Complaint Headlamp, front fog lamp leaky or fogged Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to any technical impairment of the headlamp. If a pressure compensation diaphragm is fitted in the housing cover, then the lamp unit is a "closed system". Remedy Headlamp: Remedy 1 Clearing fogged/condensed LED headlamps: 1. Drive vehicle into workshop (temperature higher than +18 °C/+64.4 °F) and connect the exhaust extraction. Note: Do not perform an engine wash before the defogging test. 2. Switch off the engine and connect battery support via a charger. 3. Open the hood. 4. Switch on the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). Clearing of fogged/condensed LED headlamps and LED rear lamps on electric vehicles: 1. Drive the vehicle into the workshop (temperature higher than +18 °C/+64.4°F). 2. Connect battery backup via a charger. 3. Open the front-end flap and ensure sufficient ventilation. 4. Switch on the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). Clearing fogged/condensed halogen/xenon headlamps: 1. Drive the vehicle into the workshop (temperature higher than +18 °C/+64.4°F). Note: Do not perform an engine wash before the defogging test. 2. Switch off the engine. 3. Open the hood. 4. Switch off the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). Note: If there is no visible reduction in condensation, check the headlamp for malfunctions. (see Remedy 2) It is not physically possible to defog the headlamps completely. Fogging does not impair the operation or the service life of the headlamp. Remedy 2 A defective headlamp can be identified as follows: 1. Check the headlamp for external damage and that the cover caps and the diaphragm are correctly seated. 2. Check the electrical connectors of the plugs and pins. 3. Check for leak tightness according to LI82.10-P-078307. The test can only be conducted on headlamps. 4. If the headlamp or the rear lamp has any external damage, replace the component part in accordance with the WIS instructions. Note: External damage to the headlamp/rear lamp or faulty seating of the cover caps does not present a warranty or goodwill case. Note: With headlamps, it is possible to install desiccant packs if the problem occurs repeatedly. • Open ventilation system LI82.10-P-078302 • Closed ventilation system LI82.10-P-078304

LI33.30-P-056665

POWER TRAIN

Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The clunk is heard once when changing from forward to reverse (and vice versa). Note: Sound file in attachment Cause If the complaint is eliminated by experimentally loosening the outboard collar nut (by 1 turn), the problem is due to micromovement in the connection between the wheel bearing inner race and the joint housing of the side shaft. Note: The collar nut must always be replaced after being loosened and must be tightened to the specified torque. Remedy Coat contact surface of side shaft with wheel bearing with Molykote paint. To do this, proceed as follows: 1. Remove outboard side shafts (extract outer joint gearing from wheel hub) 2. Clean contact surface A (see picture file in attachment "Outer joint housing before") before coating with Molykote, using "spirit" (free of dust and grease) 3. Coat contact surface A (see image file in attachment "Outer joint housing after") using Molykote and leave to dry for one hour in removed condition 4. Reinstall side shafts Note: Before using the antifriction coating (Molykote), stir or shake it well (for at least 1 minute).

LI33.30-P-056665

POWER TRAIN

Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The clunk is heard once when changing from forward to reverse (and vice versa). Note: Sound file in attachment Cause If the complaint is eliminated by experimentally loosening the outboard collar nut (by 1 turn), the problem is due to micromovement in the connection between the wheel bearing inner race and the joint housing of the side shaft. Note: The collar nut must always be replaced after being loosened and must be tightened to the specified torque. Remedy Coat contact surface of side shaft with wheel bearing with Molykote paint. To do this, proceed as follows: 1. Remove outboard side shafts (extract outer joint gearing from wheel hub) 2. Clean contact surface A (see image file in attachment "Outer joint housing before") before coating with Molykote, using "spirit" (free of dust and grease) 3. Coat contact surface A (see image file in attachment "Outer joint housing after") using Molykote and leave to dry for one hour in removed condition 4. Reinstall side shafts

Manufacturers file copies of the bulletins they send to dealers with NHTSA. These often describe diagnostic or repair procedures for a known condition. They are not recalls: repairs described in a bulletin are usually only free if the vehicle is still under warranty or the manufacturer has extended coverage.

Compare model years

Complaint and recall counts across every year of this model

Mercedes-Benz ML350 by model year
YearComplaintsRecallsInvestigationsIssue Index
2015525060.9
2014674060.8
2013565060.5
2012654054.3
20111103160.7
20101013155.6
2009933158.4
2008672050.4
2007832162.7
20061712051.3
2005230037.6
2004350039.1
2003Viewing250041.8
2001100

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers. Older model years have had longer for reports to accumulate.