skittles

i did the service at 75,000 im now at 78,+++ i happend in an instant. right after the service my mpg just f*cked up..

EDIT: auteck, i dont get my stuff from the dealer, everyone knows they suck, lol. and i do the service myself. i got my parts from diff online sellers.

FrankW

you're probably just driving harder without knowing because the maintenance freed up some hp.

Glyn M Ruck

+1 - I strongly recommend the Bosch OE plug. Don't buy plugs & wires from the dealer. Ask KrisV420 where he got his wires. They were fine

krisv420

I bought the Bosch replacement wires at napa all wires will set you back 250+

Batman6 get those covers cleaned up.. go to autozone and buy RTV gasketsealer.. big oil leak at the top.. when changing becareful with those bolts i had one snap off and i had to drill it out..

Glyn M Ruck

Thanks Kris - just wanted to check. Someone bought new wires the other day that did not work well & required to be returned. You know we drive fussy cars!!!

skittles

is it possibly the maf? i cleaned it at the same time i cleaned my K&N filter for the first time. could i have over oiled the filter and it damaged the MAF?

LILBENZ230

Wouldn't that throw a CEL?

splinter

Too bad yours is missing a supercharger. At least half the reward of driving a C.

TruTaing shared an excellent DIY regarding eliminating those pesky cam cover PCV leaks… https://mbworld.org/forums/c-class-w...ing-cover.html

Glyn M Ruck

Should throw a fuel trim code - have you checked for pending codes. Clean the MAF

skittles

no codes. no cel. i guess its really just the spark plugs?

Glyn M Ruck

I would still clean the MAF if you are worried about over oiling the K&N filter. Please tell us what plugs you fitted. Please check the threaded length of the plugs you removed vs those that you fitted. Also check the tip protrusion of the plugs you fitted vs the OE plugs. We recently had a member fit the wrong length plugs. This shrouds the spark & affects flame front propagation.

batman6

hey guys i'm having trouble removing the last spark plug on the driver side rear of the engine. Any tips on how to remove it? i tried putting in the spark plug adapter first and then attatched an extension on and used a stubby ratchet and it still won't move. it's okay if i changed out 11/12 spark plugs and jsut call it a day lol?

Glyn M Ruck

You must change that plug. This is where the genuine tool helps. Have to tried an angle drive?

batman6

no i have not....i spent literally an hour on that plug. i tired putting in spark plug adapter,extension, socket, .....i even tired a small ratchet that bends at the head but still no luck. it seems like it's just not enough clearance for me to turn the ratchet.

batman6

I plut some anti semtic on the thread of the spark plug and in the middle where the octagon shaped....is it also okay to put dialetic grease inise the spark plug wire boot and then try to stick them back in? the 2 will mix when i plug in the wire is that okay?

skittles

ill check mines later on today. but i put NGK iridium ILFR6A.

Glyn M Ruck

The last guy who had trouble fitted NGK iridium & they were too short. I can't remember the spec number.

krisv420

That plug was a *****hhhh i won't forget it.. It will come out as long as you have the right sockets adapter etc..

batman6

okay i put everything back together last night. and guess what....i got code po301. I dont know what i did wrong. i purchased a new coil pack for cylcinder 2 ....but i'm guessing maybe i shorted out cylinder 1? gonna swapp coils and wires to see what trouble code i get.

Glyn M Ruck

I thought you moved your bad coil from 2 to 1. Then the bad coil s/b at position 1

batman6

nope i only changed the coil pack and just tested it. I bought another coil pack instead of the wires. I think i might have ended up buying the wrong part. Unforteunately i can't bring this item back to the dealer. my buddy has a crashed clk for parts. i'm gonna use the coil wires from it and see if that works rather than going back to the dealer to buy wires.

Glyn M Ruck

Sounds like a good plan. Having a spare coil around is no bad thing. You'll need it sooner or later if you intend keeping the car.

batman6

finally fixed my car but it still shakes a bit when idiling...but none the less thanks to everyone on this forum for helping out.

Glyn M Ruck

Are you sure you don't have a suspect engine mount if all else is OK?

batman6

hmmm maybe.....I looked at eh engine and it wasn't shaking....so i'm not sure if it's the engine mount. I'm thinking it could be the wires. since i only change 2 of them. there's still 10 of them that could potentially be bad or about to go.