Are w124 e300 diesel injectors the same as w210? anyone got a parts book?

[fletchf1]

Dear Mercedes owners forum,
I have a 1995 w124 e300 diesel and would like to replace the injectors (currently on 250k miles). The engine is an OM606 which I think was carried over onto the w210 e300 but also used a turbo. Does anyone know if the injectors are the same part number for these two models? Because I am sure I could source good/used w210 injectors quite easily.
many thanks,
Christian

 

[robparker]

They are different im afraid. Non-turbo 606 ones are 0001510551 and the 606 turbodiesel ones are 0001510651

 

[fletchf1]

thankyou fo rthe information rob. do you have any injectors in stock? christian

 

[robparker]

Not a full set im afraid, I possibly have the odd one

 

[spock500]

If you struggle getting the whole injector you can always replace just the nozzles. If you go this route there's a couple of options, send the whole injector away for refurb or buy the nozzles in a DIY.

If you opt for the latter, you will probably need to take them for a pop test at your local Bosch dealer. Also, research the type and brand as some makes will actually be worse than the ones you have already.

 

[spock500]

Here's mine from an earlier OM605 but very similar I would have thought.

The nozzle is the stainless steel item, mid to left of picture. You may also need to change the shim for correct pop pressure (circular with hole, next to spring)

 

[mej]

I think the only difference is the turbo ones pop at 135psi and the N/A at 115psi. As the previous poster, possibly fixable with different shims or assiduous thinning of the 135 ones (by steady sanding and retesting from time to time).

 

[fletchf1]

reconditioning injectors

dear david, thankyou for the information and advice. i think i would rather send all 6 of my injectors off to be rebuilt and set correctly and my nearest bosch agent. having done some research it does seem like these injectors are prone to wearing out, so i don't understand why there are no complete aftermarket parts available? regards, christian.

 

[spock500]

You're welcome Christian.

The nozzles are widely available but in terms of a kit unlikely due to the testing needed on completion.

For refurbishment try http://www.uniteddiesel.co.uk/ very friendly and helpful.

If UK based they offer a quick turnaround service knowing your vehicle maybe off the road.

 

[fletchf1]

Thanks for the contact David. I called them today, they charge £4.50 to check each injector and about £50 to rebuild each. So £387 total. Compare this to a new set from Mercedes at £672.
I think that the most frustrating aspect of this recon route is that I must take my car off the road for a week. I had actually hoped to source a set of brand new injectors for a similar price of the recon. Just like we do for alternators, brakes, clutches, bodypanels, belts etc.
Does anyone know of new aftermarket injectors for the OM606 non-turbo?
Regards,
Christian

 

[spock500]

That sounds very expensive for the works involved. Mine came to around £150 for a set of five.

Try using the 'enquire' tab on their web site to get the exact match.

You could always buy a second set which may even be ok while yours are in the shop.

http://www.ebay.co.uk/itm/Mercedes-...arts_Vehicles_CarParts_SM&hash=item1c2d11393f

 

[spock500]

By the looks of things, the bottom part unscrews.

These are a genuine set of Bosch nozzles for £100, you need to add a pop test at around £35 -55 from a Bosch specialist.

http://www.ebay.co.uk/itm/MERCEDES-...arts_Vehicles_CarParts_SM&hash=item3f1e6454aa

 

[fletchf1]

my solution

Update....
thankyou to all that replied. useful comments. taking your advice on board i deciced that my best solution was to go with United Diesel who were very helpful. they offer an exchange service against the old injectors, so my car is not off the road for more than a day. the cost was £300 for brand new bosch nozzles in recon'd bodies, including new hoses, grease, heatshields and even the loan of a special slimline socket to fit the injectors.

which leads me on to my next query... i have wimped out on fitting these myself and asked my local independant garage to do the job. however they have expressed their concern that the old injectors may be seized into the head, thus becoming a big job, worst case head off. i personally don't beleive they will be a problem to unscrew, but has anyone experienced their diesel injectors being seized and stuck in the head of an OM606 engine?

regards,
christian