Mercedes-Benz 300-Class Questions Maintenance & Repair

  • Newest
  • Recently Active
  • Unanswered

Are Electric Windows On A 1985 Mercedes Fused?

After changing electric window switches windows still do not work. Are the fused?


Ignition Problems - No Dash Lights On Key Pos. 2

HI all, I just had my ignition switch, steering lock, and key tumbler replaced. Had problems with starting, and replacing those parts seemed to have fixed the problem. Car started up fine for 2 day...


-oil Pressure Sending Unit Repair?

oil pressure drops to 0 at stop signs and then back to 3.0 after I accelerate. has a new head gasket and am wondering if a new oil pressure sending unit would cure the problem? cars runs well for 132k

29 views with 1 answer (last answer about a month ago)

Dash Lights Want Work

Dash lights won't workj

23 views with 1 answer (last answer about a month ago)

1993 300ce Convertible Rear Side Windows Will Not Lower

rear side windows will not lower ant the soft top will not lower

12 views with 1 answer (last answer about a month ago)

I Have A 300e Mercedes 1989

I was told that it is not a good idea to switch from regular oil to synthetic, was told it might create leaks and damage the engine. Your feedback is appreciated.

55 views with 1 answer (last answer 2 months ago)

How Do I Change The Oil On A 1991 Mercedes Benz E300 4matic?

I have had some low oil pressure issues but have added more oil. That isn't my concern really, I am not to familiar with Mercedes and need to know where the oil plug (i think that is what it is call...

31 views with 1 answer (last answer 2 months ago)

Vibration In My 1991 Mb E300

I have a 1991 mercedes Benz e300 6 cylinder gas with 70,000 miles. I have a problem that we can't seem to correct. When the car is stopped and it in drive it vibrates. I didn't mind at first as the ...

37 views with 6 answers (last answer 4 months ago)

I Have Pulled My Key Out Of My Mersades 300e In Wrong Possition Now Cant Ge...

I have pulled key out in wrong possition now cannot put key back in to unlock

28 views with 1 answer (last answer 5 months ago)

Erratic Idle And Running Rich... Massive Vacuum Leak?

We have a 300 that has a bipolar disorder. It either runs great or it idles high, low and dies and it is running rich - like 10 mpg rich... I replaced the air idle valve and it was better for a wh...

116 views with 1 answer (last answer 5 months ago)

How To Replace In Tank Fuel Pump 300e

i have a chance o buy a 1989 300e with in tank fuel pump problems. need to know if i can replace it by myself?

108 views with 3 answers (last answer 5 months ago)

Voltage Regulator On Benz 300e

Can the voltage regulator on the alternator of my Benz 300E be replaced without removing the alternator?

103 views with 2 answers (last answer 5 months ago)

The Alarm Went Off My 1993 Benz 300e And Now It Just Won't Start

There's nothing when I turn the key. No ignition lights, nothing at all.

101 views with 1 answer (last answer 5 months ago)
Monica Kemper Ballard

Why Would I Be Burning Through Oil Like Crazy

I ran out of diesel the other day and ever since then I have been having to add oil like crazy. Its not leaving a puddle under the car just slings it out while its running looks like from the front be...

19 views with 1 answer (last answer 6 months ago)
Nikki Zukoski

How To Fix An Rpm Problem

looking how to fix an RPM problem in the 1990 Mercedes Benz 300E.

115 views with 1 answer (last answer 4 months ago)
1 2 3 4 5 6 next

Favorite this topic

Subscribe to Mercedes-Benz 300-Class Maintenance & Repair questions.

Search Mercedes-Benz 300-Class Questions

Mercedes-Benz 300-Class Experts

#1 Tom Demyan
Tom Demyan
Reputation 120
#2 7jimmy7
Reputation 110
#3 Craig Romain
Craig Romain
Reputation 100
View All