PeachParts Mercedes-Benz Forum - 99' C43 AMG's ongoing saga

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Quote:

Originally Posted by 2.5-12 (Post 2801616)

I forgot to mention, when I started it initially, it didn't throw a CEL at idle, only when I put it in gear and set off.

Several possible answers come to mind with the Vin data.

Item Number: MB# 0005400072
Main Category: MB
Sub Category: Engine Electrical
Description: Overload Protection Relay-(K40 Relay)
Weight: 0.500
Application list:
C230 chassis: 202.023
C230 Komp chassis: 202.024
C280 chassis: 202.028 from 1997
C36 chassis: 202.028 from 1997
C280 chassis: 202.029
C43 chassis: 202.033
CLK320 chassis: 208.365
CLK430 chassis: 208.370
CLK55 AMG chassis: 208.374
CLK230 Conv chassis: 208.465
CLK430 Conv chassis: 208.470
CLK Conv chassis: 208.474
E320 Sedan chassis: 210.065
E430 chassis: 212.070
E55 AMG chassis: 210.074
E320 4M chassis: 210.082
E430 4M chassis: 210.083
E320 Wagon chassis: 210.265
E320 4M-W chassis: 210.282
http://www.peachparts.com/shopforum/...00-72_stgh.jpg

* Corrupted module programming ?
* Contaminated fuel ?
* Engine ground strap loose damaged ?
* 2035400253 Transmission Electrical Connection Spacer bad/false signals to computers ?
* 2105451332 gear recognition switch bad/false signals to computers ?
* Camshaft and/or crankshaft position sensor ?

FYI:

# The transmission control unit has been superseded three times.
# The MB# 0265453132 engine control unit has been superseded four times.
# Thee electronic stability control unit has been superseded three times.

.

I guess I can check the engine ground.

is it possible that its something more along the lines of a fuel injector, or even spark problem?

also, is that K40 in the back left of the engine compartment? any way to check its condition before ordering a replacement?

Quote:

Originally Posted by 2.5-12 (Post 2811478)

is it possible that its something more along the lines of a fuel injector, or even spark problem?

Not that I can see.

Quote:

Originally Posted by 2.5-12 (Post 2811480)

also, is that K40 in the back left of the engine compartment? any way to check its condition before ordering a replacement?

Picture attached.

alright, I guess I'll buy one of those next, haha.

Fingers crossed.

thanks for the help :)

well, back to square one. that didnt solve it :/

no other points of interest?

I ordered a fuel rail and injectors out of desperation.

got my replacement AMG Bosch III EV6s with rail late last week, here are some pictures fresh out of my ultrasonic cleaning session. new baskets, spacers, top and bottom o rings and top & bottom spacers on order. fingers crossed hard this works.

https://lh4.googleusercontent.com/-F...25252B0000.jpg
https://lh4.googleusercontent.com/-m...25252B0000.jpg

well, a little update here. got the rebuild kits.

pulled the old filter baskets out of the injectors
https://lh5.googleusercontent.com/-h...0/IMG_4923.jpg

popped in the new ones with some effort
https://lh6.googleusercontent.com/--...0/IMG_4922.jpg

then replaced all the o rings, and pintle caps
https://lh6.googleusercontent.com/-Y...0/IMG_4925.JPG

voila, a nice and clean set of AMG EV6 greenies! cant wait to try em out.
https://lh4.googleusercontent.com/-d...0/IMG_4924.JPG

Keep us posted. If it doesn't work, I recommend a compression check next to help isolate what's going on with cyls 2 and 3.

it was fuel injectors.

pulled the car out of storage, running like a dump, swapped in my used but rebuilt EV6 greenies and she fired right up, purrs like a large growly cat.

all fixed.
fuel injectors took a dump at 105k miles for those reading this thread in the future with a similar set of problems!