misfire

Hello First post so please bear with me! I have a 55 plate CLK 200K, 44K miles. A few months ago my engine management light came on, was going up hill, about 4000rpm, then loss of power and the car drove like a pig. Was all fine again after i switched the engine off. Happened a couple of other...

Rash decision but decided to buy a 1986 w123 230te that hasn't moved or started for 5 years I know it's gonna bleed me dry but I have always loved them I've managed to get her started but it idles like a pig with a missfire I've changed so far: Plugs Leads Cap & Rotor Compression ok...

Dear Olly, Your idea worked.. I couldn’t belive the results. On Saturday I rang Jack around 10:00 and asked him if there is anything needs to be done after driving car on motorway and he said that nothing needs to be done and it should clear itself (Thanks Jack for explaining the procedure, I...

Hello chaps! My F reg 260E's occasionally experiencing a choppy idle & stuttering at low revs ten minutes or so after starting out from cold (fine higher up the rev range). I've had a search through the forum and it appears there's a few things to try - however this one's slightly different...

Dear Merc Gurus and Forum specialists, My C180 COUPE engine 271 is misfiring on cylinder 3 with error code P0303 and behaving rougly on idle. Had Spark Plug changed and Ignition coils on cylinder 3 but it only became bit better to what it was. I took it to garage yesterday for diagnosis with...

Dear fellow members and experts, I bought this car C180 2002 model a bit more than one year ago. After one week it started misfiring on cylinder 3 with error code P303. i took it to garage and they changed spark plugs and cylinder 3 coil. It didnt work and check engine light came back again...

Does anyone have any ideas on this one? horrible vibration at midrange throttle from rear end and very harsh gear changes up and down particularly 3 to 4 and 4 to 3. Feels like prop coupling, driveline but all ok. Original fault code for no1 injector fault replaced injector now no fault codes on...

Any ideas on this one ? I'm thinking some sort of sensor or air fault ? When starting the car, it will sometimes run like its only firing on 5 or 4 cylinders. It runs the same upon acceleration as it does at idle. Doesn't stop when idling, but has this ongoing regular misfire / lag. Especially...

I am looking for some help with a problem i have with my c240 v6 estate, when i start the car from cold and drive off, if i accelerate away to quickly the car loses the power on some of the cylinders, the only way it will return to normal is to stop and restart the engine, it also has a bit of a...

This is a very worrying problem over the past few weeks. The car had low coolant, so I topped up with 1.5litres (hadn't been done in ~ 12 months so I thought nothing of it). A month later, low coolant again. At the same time, the engine misfires if I give it around 50% throttle, once it gets...

I've got this fault code on my C180 (1998 model). My first guess would be the coil-pack, but if this was failing wouldn't it cause a misfire on two cylinders as they share a coil? What else could cause this fault? Also, which is cylinder no1? Many thanks

Journey home tonight was fine - until almost home then I tried an quick pull away at a roundabout and the car didn't take off. Just plugged her in and trouble code P0304,0305,0306 are being reported (Misfire on cylinders 4,5,6). Aside from the fact the car won't rev - it is driving normally...

Any ideas on cause of this please: I took my girlfriend's late grandad's SL for a run today, it hadn't been started since late November (see this thread.) The battery was flat, despite being left garaged and on a trickle charger. One quick swap with the one from her grandma's C240, and after...

My w210 E280 V6 has a misfire at high revs (About 5000rpm). I have changed the plugs, the filters and cleaned the MAF but still have the problem. Any suggestions as to how I might find the cause of the problem? Thanks

Hi folks,Could anybody advise me or give me some ideas as to why my E320 is misfirng when taken out for a run on the straight! It does`nt always happen but every now and then it drops revs and gives a little jerk .Otherwise it runs perfectly .Look forward to the replies.Sorry just realised that...

I have a 2000 S320 Petrol. It's been sat parked down the side for house for the last 12 weeks only moved every two or three weeks for a quick wash and let it idle for 30mins. I have done this often over the six years when I am not using it but this time it misfires (sounds like it is hitting...

I want to change my coils as a pre-requisite to getting my ECU looked at / fixed, but wanted to confirm a couple of things before I try and order anything :o 1. Can anyone confirm whether I need 2 or 3? coils as per this diagram item no 29 which shows on top of the engine...

Will a CPS cure a mis fire? Took my W163 to an independant last week with a huge mis fire They said that the CPS was showing as intermittantly faulty and changed it Drove it back and told me it was all done Not convinced as car seem to still be the same? Gearbox is still not...

hello there everybody! not really what i'd wanted my first post to be about but here goes. i recently bought a c230 komp and it's running rich and has a misfire but only when you put your foot to the floor in first and rev it past 4,000 revs. so far i've changed maf, spark plugs, both coil packs...

i will be as brief as possible.car starts up on all 4,add a few revs and it starts to misfire and stays missing.starts up on 4 every time.if i take off the temp sender lead before starting it does not misfire!but the cooling fans cut in. Work done:-ecu checked and repaired. air flow meter...