Mercedes-Benz 300-Class Questions Maintenance & Repair
Starter Location On A 1991 Mercedes 300 SE
location of the starter on the engine
Oil Leak
I recently got a 300ce which runs like a dream but there is a slight oil leak above the altenator from the head i presume and was wondering would torqueing the head or is there any quick fix as i don...
Red Light At Dash/hard Starting
This vehicle is a 1988 300e. Changed out oxygen sensor, red light remains on. Engine cranks fine, engine fires within 6sec or so, but will not operate properly if gas pedal is worked. Takes about a mi...
87 300 E Stalling Problem
my 87 300e RUNS AND DRIVES but stalls after a while of driving and will turn over but not fire up. If i let it sit for a while and try again same thing drives just fine then quits.. possible cause NE1...
I Have A 1977 Mercedes-Benz 300D With A Good Interior And Engine But Bad Ex...
i have a 1977 Mercedes-Benz 300D with a good interior and engine but bad exterior (rust) should i try to fix it? and there is to what i know is a heater servo on the left side of the engine bay as u o...
Timing Chain
My friend is having major work done on his 1990 420SEL because he didn't replace the timing chain. He said it should be done every 75,000 miles. Is this true? I just bought a 1990 300SEL with 88,000 m...
Fuel Filler Door Won't Open.
Can not open fuel filler door. How can I override lock?
Whats Wrong With The 4 Mattic System In My Mercedes Benz
why is the 4 mattic light always on? I mean it did not always stay on. also can i turn it off? and if so how
Oil Grade
I have just recently purchased and have no owners manual. I am wondering what grade of oil to use on a 3.0l 24v
Most Common Repairs
what are the most common problems or repairs on the 1991 300e
Won't Start
I have spark, fuel, cranks good but won't fire. I checked injector spray pattern good. Good spark. Like a choked carb, could I be getting too much fuel? When I first checked plugs they were wet. Prio...
Former Specialty Mechanic Shares Secrets
hey guys i just wanted to share some of the common problems that I have with my 1993 300e 2.8 (m104 engine) that happens to every car. 1. if you have a low idle speed and you car dies at traffic light...
When Car Is Cool It Runs Fine. When Car Heats Up It Hesitates And Loses Pow...
When car is cool it runs fine. when car heats up it hesitates and loses power. It idles fine but when you take off it has very little pick up and hesitates. ANy ideas?
No Start
1986 300e gas car turns over but wont start i changed plugs wires cap rotor coil (used coil) fuel dist block checked all fuses any ideas?
Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.