Parts Catalog Accessories Catalog Tech Info Tech Forums
  Search our site:    
 Cart  | Project List | Order Status | Help    

Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

LinkBack Thread Tools Display Modes
Old 01-20-2003, 10:10 PM
Registered User
Join Date: Dec 2001
Location: Delta, B.C. Canada
Posts: 4
Angry 1987 300e Hard to start when warm

Over the past several months my 87 300e has become increasing difficult to start once the engine has warmed up. Cold starting such as over night is excellent, but once I have driven for 15 minutes or more. It requires 10 to fifteen seconds of cranking.

The car has 233,000 km, Well maintained, with the usual warts addressed.
Reply With Quote
Old 01-21-2003, 12:33 AM
Posts: n/a
my 1991` 300sl had the same problem and i replaced the fuel injectors which would leak into the cylinders and the car was difficult to start when warm or hot. the car would also sputter and sometimes stall. they were easy to replace and fairly inexpensive.
Reply With Quote
Old 01-21-2003, 03:21 AM
Registered User
Join Date: Sep 2000
Location: Ankara, Turkey
Posts: 32
very common M103 problem..

chances are (from cheap to expensive)

- fuel pump check valve (~$15 at partsshop)
- over voltage protection -ovp- relay (less likely in this matter)
- fuel accumulator (next to fuel pump, ~$120)
- fuel pressure regulator (under air cleaner next to fuel distributor, >$200)

many people just give up and crank more than once when the engine is warm. in my case, i replaced the check valve and fuel accumulator, no help. considering my ovp is in good shape (no hot start problems), only item left is the fpr which costs arm&leg at the MB dealer.
2001 E200 Kompressor Avantgarde
1987 300E 5-speed
1976 450SLC
1975 280S (sold)
1973 230.6 (sold)
Reply With Quote
Old 05-23-2003, 07:04 PM
Posts: n/a
The last two summers I've experienced this problem with my '91 300E. I tried something which seems to work. I start the car with the A/C compressor off. It works fine hot or cold.

I've been attributing the problem to the temperature but it appears related to the A/C compressor.

BTW, the car has always shifted hard with the A/C compressor running but just fine with it off. This problem has occurred since the car was brand new.

I can't explain any of this.
Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 07:36 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page