S-Class (W126) 1979-1991: 300 SE, 300 SEL, 380 SE, 380 SEL, 420 SEL, 500 SEL, 560 SEL, 360 SEC, 500 SEC, 580 SEC, 300 SD TURBODIESEL, 300 SDL TURBO, 350 SD TURBO, 350 SDL TURBO

Newly aquired 1985 500SE UK spec non starting engine problem

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Jan 28, 2006 | 01:09 PM
  #1  
Charlotte001's Avatar
Thread Starter
Newbie
 
Joined: Jan 2006
Posts: 15
Likes: 0
Angry Newly aquired 1985 500SE UK spec non starting engine problem

Hi I'm a new member and have aquired a 1985 500SE Uk Spec car. The car ran extremely roughly so I changed

Plugs
Leads
Cap
Rotor Arm

I have cleaned the contacts with contact cleaner also checked to see if the coil is ok by means of a spark test both at the plug and at the cap.

Problem is the car is now refusing to start at all. Engine is turning , spits and sputters but no life.

Could anyone suggest what to check for. Also the air/fuel mix screw was moved in error for mistaken idle speed. Does anyone have a picture of the fuel injection settings (ie is there a default setting) Could anyone tell me how many turns to get the thing running or is there anything I can look at.

Charlotte
Reply
Old Jan 28, 2006 | 02:55 PM
  #2  
dtkw's Avatar
MBWorld Fanatic!
 
Joined: Jun 2003
Posts: 2,081
Likes: 0
From: Indiana
1986 560SEL, 97 BMW 740iL
Check the fuel pump, fuel pump relay...etc. If mixture is not correct, it'd still start but rough and lot of smoke. Sounded like the fuel pump is not working right.
Reply
Old Jan 28, 2006 | 08:02 PM
  #3  
Charlotte001's Avatar
Thread Starter
Newbie
 
Joined: Jan 2006
Posts: 15
Likes: 0
Relay

hi thanks where would the relay be ? I'm sorry I don't have a service manual for it (Pictures are greatly accepted)

Charlotte
Reply
Old Jan 29, 2006 | 08:10 AM
  #4  
Charlotte001's Avatar
Thread Starter
Newbie
 
Joined: Jan 2006
Posts: 15
Likes: 0
Question non starting 500SE uk Spec

Update time

I believe that one of the hose clips have failed on the rubber sleeve. To remove this do I need to fully remove the inlet manifold or can I seperate the clips without ?

Second update

Clip is off (Lots of releasing spray and the Non MB Special tools) and it's definately a CIS system. Just got to seperate the sleeve from the manifold (wonder what other suprises I'm going to find) any suggestions.

Now I'm this far in might aswell rebuild the thing at least I will know it will work then.

Tomorrow I will check all the relays and fuses to see the voltage. Fuel pump has been checked as has the idle control valve (which click when powered)


Charlotte

I believe the fuel injection to be CIS mechanical same as the 450 series

Last edited by Charlotte001; Jan 29, 2006 at 02:48 PM. Reason: Adding info
Reply
Old Jan 31, 2006 | 12:03 PM
  #5  
Charlotte001's Avatar
Thread Starter
Newbie
 
Joined: Jan 2006
Posts: 15
Likes: 0
Talking I've found the problem for my non starting 500Se (UK spec)

The problem appears to be a large hole in the air ducting that sits under the fuel injection systems. I have checked with MB for it and have been quoted £80 something. Euro and GSF don't have it in stock. If anyone knows where I can get this part (I don't need the rest) I have found a company in the usa but they don't ship to uk

Charlotte
Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 05:03 AM.

story-0
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-1
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-2
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-3
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-4
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-5
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-6
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-7
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-8
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE
story-9
10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE