Most common 2001 Mercedes-Benz 320 problems
Share of the 17 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Mercedes-Benz 320 complaints by model year
Best 320 years: 2002, 1996. Years to avoid: 1998, 1999. Compare all years →
What 2001 Mercedes-Benz 320 owners say
Electrical system
Various problems with electrical, heating and cooling, suspension, power steering, lighting, and purge valve systems. Spent 7K in last 3 years alone. Heating and cooling system was removed and reinstalled twice and still does not work right. Struts and steering system completely brakes down every 6 months. I am in the repair shop every 2-3 months! Average out of pocket (after extended warranty) $500... Outrageous (x4 or 5 per year!). Warranty kicks in another 4K per year. My records show 14 visits to Mercedes repair shops since November 2004... Insane. This is my first and last Mercedes! Even my service adviser told me to get a Lexus or Acura!
Car is a 2001 c320 Mercedes. Battery keeps dying despite replacing with brand new batteries on 2 occasions, only 2 weeks apart. Dealer says it's the seat module draining the battery. My car will not start if I don't drive it for a day or longer. These modules are a defect and needs to be recalled. Fix is to disconnect seat power, which is a safety issue.
Engine & cooling
Various problems with electrical, heating and cooling, suspension, power steering, lighting, and purge valve systems. Spent 7K in last 3 years alone. Heating and cooling system was removed and reinstalled twice and still does not work right. Struts and steering system completely brakes down every 6 months. I am in the repair shop every 2-3 months! Average out of pocket (after extended warranty) $500... Outrageous (x4 or 5 per year!). Warranty kicks in another 4K per year. My records show 14 visits to Mercedes repair shops since November 2004... Insane. This is my first and last Mercedes! Even my service adviser told me to get a Lexus or Acura!
Faulty cup holder design which makes it easy for liquid contents to spill on the transmission/gear shifter and the computer chips below, resulting in engine stalling or failure of the electronic trransmission. This creates a dangerous situation because the car almost stops in the middle of traffic or slows down immediately.
Steering
Various problems with electrical, heating and cooling, suspension, power steering, lighting, and purge valve systems. Spent 7K in last 3 years alone. Heating and cooling system was removed and reinstalled twice and still does not work right. Struts and steering system completely brakes down every 6 months. I am in the repair shop every 2-3 months! Average out of pocket (after extended warranty) $500... Outrageous (x4 or 5 per year!). Warranty kicks in another 4K per year. My records show 14 visits to Mercedes repair shops since November 2004... Insane. This is my first and last Mercedes! Even my service adviser told me to get a Lexus or Acura!
Vehicle hose clamp broke which caused loss of power steering. There was a recall on a ml320 because the hose clamps weren't safe. Dealership replaced hose clamp. 2 days later the same problem occurred again, the vehicle was picked up by road side assistance. The mechanic stated the clamps that were replaced were no better than the ones before. Service dealer fixed it.
Frequently asked questions
Is the 2001 Mercedes-Benz 320 a good car?
Based on 17 owner complaints filed with NHTSA, the 2001 320 rates average: about as many complaints as a typical year of the 320 at the same age. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2001 Mercedes-Benz 320?
The electrical system — 6 complaints, 35% of all complaints for this model year, most often about wiring › interior/under dash. Next are the engine & cooling (4) and steering (4).
How many recalls does the 2001 Mercedes-Benz 320 have?
NHTSA lists no recalls for the 2001 Mercedes-Benz 320. You can still confirm with your VIN using our VIN recall check.
What are the best and worst years of the Mercedes-Benz 320?
The best years by complaints, compared at the same age, are 2002 and 1996. Years to avoid or approach with caution: 1998 and 1999. See the full Mercedes-Benz 320 years comparison.
At what mileage do 2001 Mercedes-Benz 320 problems happen?
The median mileage reported in complaints is about 53,000 miles; 40% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.