1998 C280 W202 > Bank 1 misfires
 

Trying to own a Benz on a budget. Is it unwise to replace only one bank of wires and spark plugs, if only one bank is showing codes for misfires in cylinders 1,2,3? I've been quoted $497.92 for replacement :nix:of both banks of wires and plugs. I'm likely to replace them myself, at that price, but wondering if replacing only one side is a bad idea.

it's probably ok, but might be the coil packs. see if you can get some from the junk yard or flip them from the other side. Pull out all the plugs and see if you can tell whats going on first. make sure you blow out those holes before you pull out the plugs. awesome way to screw up your cylinders if you don't.

btw....

https://www.fcpeuro.com/

LIFETIME WARRANTY ON EVERYTHING THEY SELL INCLUDING PLUGS AND WIRES... lol its crazy i know but thats how they do it.

damn i think im gonna do plugs and wires now too LOL.



Dude, your whole kit 212$ thats with sparks, plugs, wires and filter... Lifetime replacement whaaaaaaa https://www.fcpeuro.com/products/mer...-merctunekitml

Thats a give away, you can get them every 2 years free.

Miss fire one whole bank ?
 

If you have a misfire in one whole bank I sounds more like a catalyst clogged for that bank.

Misfires are showing 0301, 0302, 0303. The whole bank. I think that I'm going to bite the bullet over the next couple of paychecks and get the parts for both banks.

Missfire
 

It's easy to verify a clogged cat with no parts just remove the exhaust pipe right out of the header pipe. It's 2 13 mm bolts. Also it's the pass side where 1,2,3 are.