Fuel pump relay

[Antsue]

Mercedes 200E. 1991 please can anyone tell me where my fuel pump relay is I keep being told it's behind the battery but the only two things behind the battery is the box black box which I think is the engine management system and a little square relay with a clear top which lifts up to replace the 10amp fuse. Which I think is the surge protection unit the engine fires up if you squirt fuel into air filter but no fuel at the engine end thanks. M. A Freeman

 

[DREAMER NO2]

This is what it looks like As for location i cant find any info but keep looking in other members might have a 2l to help you more . https://www.buycarparts.co.uk/mercedes-benz/saloon-w124/437/10818/fuel-pump-relay

 

[Antsue]

This is what it looks like As for location i cant find any info but keep looking in other members might have a 2l to help you more . https://www.buycarparts.co.uk/mercedes-benz/saloon-w124/437/10818/fuel-pump-relay

Ok I found it and replaced this morning thanks but no difference so now I have to locate a fuel pump as it looks like the 8 years I've been rebuilding has caused it to seize up any ideas on best place to go thanks for reply

 

[DREAMER NO2]

Is your fuel pump manual thats run off the side of the engine ? Or is it electrical 12 volt pump ?. If electric read on - Dont use any other electrical fuel pumps but Bosch I bought both my pumps, and lots of other Bosch parts from Parts in Motion on Ebay . And they are genuine Bosch dealers . There are two 12 volt pumps on the M103 ,but you will only need one pump .

 

[Antsue]

Hi I have delt with parts in motion before with the car I run at the moment volvo850. Forgot about them will give them a look thanks

 

[DREAMER NO2]

So you have a spark but no fuel ? My 740 GTL est was one of the best cars i have ever owned, and i was a fool to part with it at the time...

 

[Antsue]

So you have a spark but no fuel ? My 740 GTL est was one of the best cars i have ever owned, and i was a fool to part with it at the time...

Yes I've removed the relay jumped the sockets and just got a hot wire so I've ordered a new pump to be on safe side until I can get it over a pit but I would imagine that the eight years I've been renovating it the pump has seized as there's been no fuel in it since I've had this off the road I'm sure glad I never got rid of my Volvo 850 been a good car for collecting parts from scrap yard even a visit up to dronsfield

 

[DREAMER NO2]

I envy you .. Volvo i had was a fantastic tow car for my caravan .
You could squirt some fuel in the throttle to see if it would start that way .

 

[Antsue]

I envy you .. Volvo i had was a fantastic tow car for my caravan .
You could squirt some fuel in the throttle to see if it would start that way .

Yes I bought this 850 for £400 pounds nine years ago I've had to have abs unit rebuilt last year apart from that only usual things replaced for mot,s

 

[Antsue]

I envy you .. Volvo i had was a fantastic tow car for my caravan .
You could squirt some fuel in the throttle to see if it would start that way .

Yes I did that with air intake that's what turned my attention to the fuel pump as it will fire up

 

[mattkh]

........ there's been no fuel in it since I've had this off the road

In that case checking the sieve in the fuel pickup may be an idea as well.

 

[DREAMER NO2]

Also some models had a filter in the fuel disrtributor if it the enigine was fuel injected . Is yours injection ot carb ?

 

[Antsue]

Also some models had a filter in the fuel disrtributor if it the enigine was fuel injected . Is yours injection ot carb ?

Injection.

 

[Antsue]

Anyone tell me which relay for fuel pump I need as the first three numbers are missing on mine I only have 545 20 05 as I would like to get a spare in case when I've replaced the pump and filter this week end I have more problems. Thanks.

 

[DREAMER NO2]

Best to find one with if you post your vin number,, you have no model in your profile

 

[Antsue]

Best to find one with if you post your vin number,, you have no model in your profile

WDB1240212B762626

 

[DREAMER NO2]

I am on it now .

 

[DREAMER NO2]

Sorry it wont recognise that vin number - So.Is yours like this ? reason i ask some models had a smaller relay fitted .

 

[DREAMER NO2]

Ebay listing number 224525997130 .

 

[Antsue]

View attachment 85135 Sorry it wont recognise that vin number - So.Is yours like this ? reason i ask some models had a smaller relay fitted .

Yes except the first three numbers are faded can't make out if it's 002 or 003. All others are correct