Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help

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

LinkBack Thread Tools Display Modes
Old 08-08-2000, 07:41 PM
chris keogh
Posts: n/a
My 450 SL does not like a hot start. When cold starts every time. When hot engine fires, then dies. Any ideas?
Reply With Quote
Old 08-08-2000, 07:45 PM
Posts: n/a
mine has the same symptom when it's anything over normal operating temperature. MB dealer claims I need a new idle valve ($287) but I'm not sure if that is the actual cause of this problem.
Reply With Quote
Old 08-09-2000, 06:04 PM
chris keogh
Posts: n/a
Thanks for your comments. If I get anything definitive, I'll let you know.
Reply With Quote
Old 08-09-2000, 06:54 PM
Larry Delor's Avatar
What, Me Worry?
Join Date: Jun 1999
Location: Sarasota, Fl.
Posts: 3,109
Once it does start, is there any black smoke, or rough idling?
Reply With Quote
Old 08-09-2000, 08:01 PM
chris keogh
Posts: n/a
Larry, once it starts there is no adverse signs axcept that the engine dies, almost as if it is starved of fuel.
Reply With Quote
Old 08-09-2000, 09:06 PM
Join Date: Mar 2000
Location: Gainesville FL
Posts: 6,844
You have fuel pressure drop off and then vapor lock as a result.

The system should maintain about 3 bar residual pressure for long enough for the motor to cool. This isn't a problem cold and fuel pressure often drops to zero over night, but builds almost instantly.

Common problem is pump check valve or pressure accumulator diaphram.

Steve Brotherton
Owner 24 bay BSC
Bosch Master, ASE master L1
26 years MB technician
Reply With Quote
Old 08-14-2000, 08:36 PM
chris keogh
Posts: n/a
I should have mentioned that the motor also cuts off sometimes when I come to a stop at a light or stop sign. Would that be a sympton of the two causes you mentioned.
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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Very fast Idle, 5.0 in 1980 450 SLC (Euro) Leewolf SL Forum 24 08-02-2013 09:11 PM
Removing side louver window on 1980 450 SLC vessel Tech Help 0 03-16-2003 09:02 AM
Rear speakers in 1980 450 SL IndyWoody Car Audio and Multimedia 0 11-12-2002 05:16 AM
1980 450 SL Injection Terry McCool SL Forum 3 10-02-2001 10:15 PM
450 SLC 1980 Oil change motu70 Tech Help 1 08-04-2001 05:31 PM

All times are GMT -4. The time now is 01:52 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page