2001 Mercedes-Benz ML320 Engine cooling Problems
- Complaints
- 3about this part
- Share
- 2%of 136 total for the year
- Median mileage
- 65,546miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the engine cooling of the 2001 Mercedes-Benz ML320, 2% of the 136 complaints for this model year. Where a mileage was given, the median is 65,546 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Dt: contact stated that the windshield wipers did not work. The air bag light and the check engine light came on and will not go off. The dealer performed the repairs, and the failure recurred. They were telling the contact that they did not know what the problem was. The manufacturer advised her to contact dealer. The driver side window was imoperative. Updated 01/06/06.”
NHTSA complaint #10140555, filed 2005-10, 49,000 miles“3rd catalytic converter failure in less than a year. December, 2003 - initial failure. Had to badger mb to find a part. Fumes coming in to the cabin of the vehicle. June, 2004 - second failure of catalytic converter. October, 2004 - catalytic converter failed again. Due the number of failures on this vehicle (in addition to the catalytic converter), requested from the dealer that we speak to the area Mercedes-Benz representative. Dealer refused. Initially brought to the attention of the dealer on october 11th. Scheduled for repair on october 23rd. …”
NHTSA complaint #10095898, filed 2004-10, 81,000 miles“The contact stated the vehicle was consuming excessive oil. The dealership determined the piston rings fractured. The block and piston rings are being replaced. Updated 4/11/2006 -”
NHTSA complaint #10152837, filed 2006-03, 65,546 milesRelated service bulletins
- 10033070Dec 16, 2009Xentry (mercedes): engine warning lamp is currently on or was on and a delay fault of the camshaft adjust to current or stored in the engine control unit. Models 171, 203, 209…
- 10022893Apr 24, 2008Check engine light on / fault codes fc1200 / fc1208 stored in me-sfi control unit. Mercedes-benz model c230, c280, c350, slk280, slk350, clk350, clk550, e350, e550, cls550, s600…
Engine cooling: other model years
Other parts of the 2001 Mercedes-Benz ML320
48 complaintsElectronic stability control
33 complaintsSteering
25 complaintsElectrical system
16 complaintsVehicle speed control
16 complaintsFuel system
11 complaintsAir bags
8 complaintsOther or unknown
5 complaintsSeats
4 complaintsVisibility (wipers, defrost, mirrors)
4 complaintsLatches, locks and linkages
3 complaintsSuspension
3 complaints
← All problems reported for the 2001 Mercedes-Benz ML320
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology