Down shift, check engine light, V8 grumble, power loss, and a burning smell. (20 sec)
Man! After my plug change, the engine is as smooth as can be, and bam! After the misfire, I'm back to my terrible rough idle. If I fix the problem, is the smoothness coming back? Or did I throw something off?


Edit: 145 for an injector. Can't I run a few more bottles of techron through? I swear, I've never heard of injectors going out at 65k, and I think you've told me before that it's quite rare!
Last edited by laneshift; Aug 5, 2010 at 09:18 AM.

lol, I'm discreetly trying to edge my way out of replacing an injector. Sounds like no fun.

Last edited by Glyn M Ruck; Aug 5, 2010 at 10:39 AM.


An injector is not hard to replace - wait for Karo to post R&R - I have put out a call for him.
Then you can see whether a DIY worries you. We can help you through it - you are handy with these things.
I have not checked cost - Will have a look on RMeuropean etc.

An injector is not hard to replace - wait for Karo to post R&R - I have put out a call for him.
Then you can see whether a DIY worries you. We can help you through it - you are handy with these things.
I have not checked cost - Will have a look on RMeuropean etc.
The Best of Mercedes & AMG

Man! After my plug change, the engine is as smooth as can be, and bam! After the misfire, I'm back to my terrible rough idle. If I fix the problem, is the smoothness coming back? Or did I throw something off?

Attached are the WIS documents for removing the fuel rail and injectors.
Doesn't look too difficult. Injectors hardest part is usually getting them out because the O-rings almost seem to fuse themselves in place.
Last edited by johnand; Aug 5, 2010 at 10:13 AM.

I see that there is also a termination repair kit. I wonder if you have a bad connection on that injector - you should check it. The kit is only 10 bucks


must concentrate! - Had to stop Matt's V6 bashing - blame him
I have all the wrong hobbies - cars/mbworld/motorsport, audio, women, photograhy, wine!
What do they say about wine, women & song in excess?

How long will my original injectors last?

How long will my original injectors last?
Bosch test injector cycles out to the equivalent of about 250,000 miles. I've seen injectors last twice that & I've seen failures before that. Injectors go a long way these days if fuel is clean.






