started tear down for paint




And I concur re: compression - I don't think a half point is going to kill the day, it should still run. As far as the car knows, it still thinks it's a C43, it shouldn't know what motor is under the hood.
Is it only missing/lumpy only on the one bank?
The only bit of info I can find is the firing order changed for the w211 55k..
W210 E55 Normally aspirated: 1-5-4-8-6-3-7-2
W211 E55 V8 kompressor: 1-5-4-2-6-3-7-8
Although this shouldnt apply here, just food for thought








Glad to hear the engine is healthy and compression is ok. Phew!
Is it only missing/lumpy only on the one bank?
The only bit of info I can find is the firing order changed for the w211 55k..
W210 E55 Normally aspirated: 1-5-4-8-6-3-7-2
W211 E55 V8 kompressor: 1-5-4-2-6-3-7-8
Although this shouldnt apply here, just food for thought
According to the owners manual, the C43 firing order is 1-5-4-2-6-3-7-8
It doesn't make sense that it would be different than a W210 E55 motor as you've noted above, but if true, could that be the problem?
Glad to hear the engine is healthy and compression is ok. Phew!
Is it only missing/lumpy only on the one bank?
The only bit of info I can find is the firing order changed for the w211 55k..
W210 E55 Normally aspirated: 1-5-4-8-6-3-7-2
W211 E55 V8 kompressor: 1-5-4-2-6-3-7-8
Although this shouldnt apply here, just food for thought
According to the owners manual, the C43 firing order is 1-5-4-2-6-3-7-8
It doesn't make sense that it would be different than a W210 E55 motor as you've noted above, but if true, could that be the problem?




Anyone have any idea as to changes in firing order between 113.980s?
Best way is to check what's stamped on the 55's camcovers and compare to the original
The Best of Mercedes & AMG








He is a very qualified MB technician and has done several 55 swaps recently with no problems, including his own C43. He could have an answer or at least some pointers to check out
to get the CAT to glow red can you are most likely dumping fuel on the left side. Your CAT is probably toast now and needs to be checked. check the sparks plugs as well and know how to read them. I am very worried about a shop that can't read what is going on with the SDS or go back and look at the freeze frames and stored events, that would pull a transmisison before doing a compression check, and has not at least read the plugs. I would find a better shop before things get worse.




So nothing else on the engine is obviously wrong - cam timing, compression, flywheel, coils, wires, etc. So what else did I muck around with? The intake manifold is really the only obvious part. Yes I replaced the front and rear main seals, but those aren't going to lead to running issues. Could there be some possibility to something buggered up in the intake manifold itself? In one regard, it's a simple device, but on the other, it's a bit more complicated than a typical one piece, cast alloy plenum with runners and a place for the throttle body to bolt up to.
All I can think of at the moment.








So nothing else on the engine is obviously wrong - cam timing, compression, flywheel, coils, wires, etc. So what else did I muck around with? The intake manifold is really the only obvious part. Yes I replaced the front and rear main seals, but those aren't going to lead to running issues. Could there be some possibility to something buggered up in the intake manifold itself? In one regard, it's a simple device, but on the other, it's a bit more complicated than a typical one piece, cast alloy plenum with runners and a place for the throttle body to bolt up to.
All I can think of at the moment.




The plugs in there are the ones I had on the 43 since only last fall.
How to check a cat'a health visually? The down pipes are still off.




