Glow Plug Relay

[richkid316]

hi guys....

in the never ending saga that is my E300 )) my glow plug relay is now gone the way of th do do...

i've spoken to the garage and they have advised that it's reasonably easy to change myself and explained what to do but i was wondering if any one has done this before or if anyone has any instructions?

Cheers,
Chris

 

[television]

077 in the link

http://www.detali.ru/cat/oem_mb2.as...GM=717.446&CT=F&cat=45P&SID=54&SGR=080&SGN=04

 

[richkid316]

077 in the link

http://www.detali.ru/cat/oem_mb2.as...GM=717.446&CT=F&cat=45P&SID=54&SGR=080&SGN=04

thanks but my russian ain't that good and when i click on the link for 077 it takes me to a page to buy a part

on that note does anyone know where i can get the glow plug relay other than MB?

cheers,
chris

 

[television]

077 is not something that you click on, I put it up to show you where it is, so you only have to plug it in.

Try Euro or GSF other than that MB

 

[pomm001]

Whats up with the relay ?
i recently took mine to bits as one glow plug was not getting current on my
W211
One of the legs of the 'buzz bar' was 'fused' repaired it with strip of copper wire of the same cross section and all was well.

If its not that problem try euro car parts, or german and swedish spares, may be a little cheaper the the dealer

 

[richkid316]

077 is not something that you click on, I put it up to show you where it is, so you only have to plug it in.

Sorry, misunderstood

Try Euro or GSF other than that MB

Tried Euro and they advised that they didn;t stock and should go to MB. Who are GSF??

Thanks again...

Chris

 

[richkid316]

Whats up with the relay ?
i recently took mine to bits as one glow plug was not getting current on my
W211
One of the legs of the 'buzz bar' was 'fused' repaired it with strip of copper wire of the same cross section and all was well.

That sounds similar but mines also seems to have melted some of the housing as there is black melted plastic over some of the contacts.

If its not that problem try euro car parts, or german and swedish spares, may be a little cheaper the the dealer

tried euro car parts and they advised that i'd need to go to MB.... so back to plan A at the moment.. but thanks for your help.

Chris

 

[richkid316]

Sorry, misunderstood



Tried Euro and they advised that they didn;t stock and should go to MB. Who are GSF??

Thanks again...

Chris

Found GSF but they don't stock either... looks like i need to but from MB.... making me £105 lighter in the pocket...

 

[Parrot of Doom]

I have one if you want it, from a 1997 E300TD. 3 of the blade fuses are fused, but other than that AFAIK it works ok. It was replaced by the local indie I presume because of the fuses - however I see no reason why you shouldn't be able to replace these, possibly with unspent fuse blades from your own relay. If I'd known this I wouldn't have let them buy another, I'd have attempted repair.

You can remove yours from the car easily, and with a bit of elbow grease crack it open to see if thats the problem.

£20 and its yours. Please note the number on the box is from the replacement unit, and not this - the number on this unit has worn away, but I'm presuming the replacement unit is identical to the old one which I'm offering you.

By the way I'm positive that the price I was charged for the replacement was around £80-ish, not £105....

The interior slides out towards the photographer.

Intact fuses:

Blown fuses (opposite side to above pic):

 

[Bolide]

on that note does anyone know where i can get the glow plug relay other than MB?

I very much doubt you could get it from anywhere but Mercedes or a breakers yard. It's straightforward to replace - disconnect the battery, unplug the feed to the plugs, unscrew the cable feeds and replace it

Are you sure the relay has failed?

Nick Froome
www.w124.co.uk

 

[richkid316]

I have one if you want it, from a 1997 E300TD. 3 of the blade fuses are fused, but other than that AFAIK it works ok. It was replaced by the local indie I presume because of the fuses - however I see no reason why you shouldn't be able to replace these, possibly with unspent fuse blades from your own relay. If I'd known this I wouldn't have let them buy another, I'd have attempted repair.

You can remove yours from the car easily, and with a bit of elbow grease crack it open to see if thats the problem.

£20 and its yours. Please note the number on the box is from the replacement unit, and not this - the number on this unit has worn away, but I'm presuming the replacement unit is identical to the old one which I'm offering you.

By the way I'm positive that the price I was charged for the replacement was around £80-ish, not £105....

Cheers for the offer Parrot of Doom but i think that it's a different unit in mines as to the one in your pictures...

have ordered the part through local MB dealer, should be in on wed morning... queue a working from home day

think the part was £89 ex vat, so works out at £105ish inc. vat

 

[richkid316]

I very much doubt you could get it from anywhere but Mercedes or a breakers yard. It's straightforward to replace - disconnect the battery, unplug the feed to the plugs, unscrew the cable feeds and replace it

Are you sure the relay has failed?

Nick Froome
www.w124.co.uk

Pretty sure...

the garage told me to test the voltage that should come from the glow plug male end on the relay(does that make sense?). If there was no voltage when the ignition was turned then the relay was gubbed. also the coil light doesn't come on at all now on the dash...

guy in garage was almost certain that it was the relay as the glow plugs had been replaced about a year ago and had been tested recently.

 

[richkid316]

I think i may go find a big hole and jump in it (would need to be a vbig hole mind!)...

got the new glow plug relay this morning and fitted... turned the engine in anticipation of the coil light coming on and the car starting but no... nowt... nothing...

Phoned the garage & the MB garage both advised checking to see if there was any voltage going into the relay (which the is) and coming off the male pins which would power the glow plug(there isn't)... past that they are talking about checking all the cables or an issue with the ECU...

does anyone have any suggestions or ideas?

Thanks,
At Wits end!

 

[Bolide]

does anyone have any suggestions or ideas

Buy a multimeter and fault-find it properly. This is exactly why I asked if you were sure the relay was at fault

There's power in to the relay, a feed to activate it, a feed out back to the binnacle (IIRC), an earth and 6 output feeds. It's not rocket science

If you can't work it out take it to an auto electrician or a diesel specialist. A decent electrician could find the fault in about 2 minutes

Nick Froome
www.w124.co.uk

 

[richkid316]

Buy a multimeter and fault-find it properly. This is exactly why I asked if you were sure the relay was at fault

I consulted the garage that had previously dealt with the car and they talked me through testing the old relay with a multimeter... when i gave them the outcomes they suggested that it was more than likely the relay and i should try replacing that in the 1st instance.

There's power in to the relay, a feed to activate it, a feed out back to the binnacle (IIRC), an earth and 6 output feeds. It's not rocket science

I tested the power going into the unit (as i said in my previous post) and there is between 10 & 12v going into it. There is nothing coming off of the male plugs that would power the glow plugs. I’m fairly new to trying to sort problems out with my car and I appreciate any help that come my way but please bear in mind that I’m no where near the level you are at but everyone has got to start somewhere, no?

I also realise that i may not be a rocket scientist but can you expand on what the IIRC is?

If you can't work it out take it to an auto electrician or a diesel specialist. A decent electrician could find the fault in about 2 minutes

Nick Froome
www.w124.co.uk

The reason i didn't do this is the 1st place is because i can't get the car started or towed so was going to need to get it uplifted, but i may well have too.

Thanks for the help

Chris

 

[Bolide]

A mobile auto electrician is probably your best bet. My point is that this is a simple thing to fault-find if you understand auto electrics. I know quite a few good mechanics who run a mile when volts are involved

Most of the time, finding the right person to do the job is 99% of the job

If you want to tackle it yourself, Google will probably help turn up a circuit diagram and also explain IIRC

Nick Froome
www.w124.co.uk

 

[richkid316]

It lives... my firends brother is an auto electrician and he very kindly had a look at the car... it was a fuse that i didn't realise or check that had blown... he's now replaced and the engine is working fine...

he's also going to check the glow plugs are ok as well just to be safe.

thanks to anyone that helped.

and Bolide you were right about finding the right person lessons learned and all that... i'll still try and do things myself but i'll make sure i've got all the info 1st

Cheers,
Chris