Most common 1999 Mercedes-Benz CLK320 problems
Share of the 18 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Mercedes-Benz CLK320 complaints by model year
Best CLK320 years: 2005, 2001, 2004. Compare all years →
1999 Mercedes-Benz CLK320 recalls (1)
Seat belts › Front › Anchorage
Vehicle description: passenger vehicles. A defective weld was discovered on the weld nut for the bolt used to secure the front shoulder seat belt guides.
Remedy: Dealers will repair the shoulder belt anchor assembly.
NHTSA defect investigations
Federal safety investigators have looked into a possible defect involving the 1999 Mercedes-Benz CLK320:
Engine crankshaft pulley failure
The office of defects investigation (odi) opened this preliminary evaluation to investigate allegations of engine crankshaft pulley harmonic balancer failure that could result in loss of power-steering assist.odi has received a total of 546 non-duplicative reports that allege engine crankshaft pulley harmonic balancer failure on all Mercedes-Benz vehicles using the subject component.the subject component failures…
What 1999 Mercedes-Benz CLK320 owners say
Engine & cooling
(1) vibrations of engine at idle was felt 1 day prior to the failure. (2) heard loud/knocking noise the next day while driving home. (3) home inspections revealed disengagement of the outer belt pulley from the harmonic balancer. (4) called the san diego dealer for a repair/replacement. (5) the model is clk 320, 1999, approximately 64,000 miles when this happened. (6) directed to this site from an internet forum, whose hundred of members had stated the same problems. (7) surprised to see that odi did not find the defect serious enough to force the manufacturer recall.
Numerous complaints about a faulty crankshaft position sensor in Mercedes Benz vehicles that prevents cars from starting and also shuts them off whilst on the road and in motion. Car died on me 6 times. Luckily, I wasn't traveling very fast but this is very unsafe but I did cause a traffic delay and blocked the road several times while stalled.
Windows, wipers & sunroof
Tl* the contact owns a 1999 Mercedes Benz CLK320. The contact stated that while driving approximately 65 MPH, the sun roof suddenly shattered without warning. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was 199,000.
Mercedes Benz 1999 CLK320: the outside mirror on the driver's door has turned so dark, it is virtually black and the driver cannot see anything in it. This inability to see in this exterior side-view mirror is extremely dangerous. It probably is caused by changes in the coating that is supposed to either heat the mirror or dim it.
1999 Mercedes-Benz CLK320 engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 3.2L 6-cyl | 5-speed automatic | RWD | 18 / 26 / 21 |
EPA ratings. Class: Subcompact car.
Frequently asked questions
Is the 1999 Mercedes-Benz CLK320 a good car?
Based on 18 owner complaints filed with NHTSA, the 1999 CLK320 rates average: 1.3× as many complaints as a typical year of the CLK320 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 1999 Mercedes-Benz CLK320?
The engine & cooling — 5 complaints, 28% of all complaints for this model year, most often about engine. Next are the windows, wipers & sunroof (3) and fuel & propulsion system (2).
How many recalls does the 1999 Mercedes-Benz CLK320 have?
There is 1 recall for the 1999 Mercedes-Benz CLK320, the most recent from February 11, 1999 (anchorage). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Mercedes-Benz CLK320?
The best years by complaints, compared at the same age, are 2005, 2001 and 2004. See the full Mercedes-Benz CLK320 years comparison.
At what mileage do 1999 Mercedes-Benz CLK320 problems happen?
The median mileage reported in complaints is about 75,000 miles; 13% 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.