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-Benz Forum > Mercedes-Benz Tech Information and Support > Tech Help

LinkBack Thread Tools Display Modes
Old 05-03-2006, 01:02 AM
Registered User
Join Date: Aug 2005
Location: Southborough, MA
Posts: 42
'83 380sl Fuel Pressure Regulator

Is there a way to reset the fuel pressure regulator on my 1983 380SL? I think that this is the item in is a allen wrench adjustment, spring-loaded and accessible through an opening in the air-filter any event, this was moved around and my mileage has dropped way down, so I assume that I am somehow running the engine way too rich? Any advice would be greatly appreciated. Many thanks, Jeff

JEFF & JO and our 3 Golden retrievers:
SUNNY, CHEYENNE, and POCO (the little Chupacabra)

'84 380SL (mine) 222K, still strong but showing its age
'91 300CE (hers) 135K, near mint in and out
'83 380SL (mostly mine) 150K, mint in & out
Reply With Quote
Old 05-03-2006, 02:43 AM
simmo300e's Avatar
Registered User
Join Date: Jun 2004
Location: Bali, Indonesia
Posts: 200
That sounds like the idle mixture adjustment to me. the fuel pressure regulator is a check valve that regulates fuel pressure, downstream of the fuel distributor. Its not adjustable.

My only other point would be that these components, at least on my 87 300E, are from a K-Jetronic CIS-E fuel injection system. Someone else may be able to confirm that this was in fact used on an 83 model 380SL.

Presuming that you may have a non-electric CIS system, adjusting the idle fuel mixture is, iirc, anti-clockwise is lean, clockwise is rich. And a little goes a long way. A search on idle mixture adjustment will probably help.

good luck

1987 300e manual 250,000 km (sold)
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

All times are GMT -4. The time now is 08:34 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page