misfire

I hope someone can help me. My C180K (manual) has started developing a misfire whilst idling. I'll be sitting at the lights and suddenly the engine will start shaking (as it goes from 4 cylinders to 3) and the engine warning light will come on. The problem is easily resolved by switching the...

I was driving tonight not going fast at all and turned into the gas station to get some gas when the check engine light came on and the car started missing. Car starts up with out a problem. Doesn't sound like a blown engine. Drove it home. Sounds like a spark plug or spark plug wire issue...

Having a problem with my 1999 S500...... I've got a bad misfire on the left hand cylinder bank and can't (so far) get to the bottom of it. The cats collapsed after getting a good dousing in water during those little rain showers we had the other week, MB said the MAF was also reporting...

I have a 560 SEC with 102k on the clock. I had the head rebuilt on it 6-12 months ago, 500 miles ago precisely due to a few running issues. Well i've developed a misfire in the car (yet again!!) so decided to have the compression checked on it. The reading as as follows, from the front of...

I have a slight misfire when i accelerate hard. The car is fine when driven around town. Is it the HT leads I think they have been on the car from new, that would make them 17 years old. Considering the age of the car should I change any other parts of the ignition system. The car is a...

Having trouble with misfire that dealer has not been able to solve. Codes say misfire cylinder 1, and MAF sensor fault. Dealer has: Changed MAF sensor Swapped plugs, coils etc, still says cylinder 1 Swapped fuel injectors, ditto Compression test OK Initially misfired when accelerating hard, but...

I've started getting an evil missfire under acceleration in the SEC - lumpy, feel vibration through the seat, lack of power. Idle seems less smooth as well. Revs smoothly in neutral. Does anyone have any suggestions as to what it may be?

I have devoloped a problem on my C250 diesel. On cold starts the car has a slight mis, noticable when free revving in neutral at approx 1200 revs. Only happens for the first few minutes when its cold. It may be related to changing the glowplugs. One snapped in the head, so with great...

Here we go again... 9 months ago we replaced the throttle body and air flow meter on the SL to try and cure an intermittent misfire that would get progressively worse until the car stalled. It's been fine up until last Wednesday, when I managed to get a whole 10 miles out of the car before...

Symptoms are a shuddering through the car, with a feeling that it is changing gear, but it isnt. Does not happen all the time, but is becoming more regular. Have had the car to Chris Gray, who diagnosed old plugs, which we changed. This cured the problem for a few days, but now it returns...

Recently my 1998 model has started to misfire first thing in the morning. I don't think it is a single plug issue, the engine just seems to fail to respond to the throttle. The symptoms can last for just a few yards of travel after which the power returns with a surge. The car is going in for a...

Hi, I wonder if anyone could suggest what might be wrong with my 1998 E280, 35,000 miles. I'm experiencing an intermittent engine misfire from start-up about 1 - 2 times per week. No particular pattern to it - just seems to happen at random. No warnings on dashboard. Problem doesn't go as...

Guys, I have been through all sorts now and can not cure a misfire on my SL320. I have had the following done: 2 x new cats From German and sweedish 1 x new coil pack 1 x Mas sensor swapped 2 x new leads 1 x new injector all on cylinder 6 which seems to be the root cause of it closing...

Hi guys, Have just been out in car and noticed the engine management light come on and it was real lumpy and poor respose to accelaration..... I had a friend who ran diagnostics on the car and found that Cylinders 5+6 were misfiring on B. He changed the leads over and swapped the coil pack...

Okay...so just got this car yesterday... Test drove it, drove it home 150 miles.. ran perfectly... Today however... It has started to develop what sounds like a misfire and is lacking alot of power :| The exhaust is also popping... Any ideas on how i can fix this... Its wierd that it didnt have...

I've got what feels like an occasional misfire on my E300TD at idle speeds. You can feel through the seat one cylinder not firing in tune with the others. Seems perfectly ok above idle though, no power loss or anything. So with 168k on the clock, what do you reckon it could be? I know...

car starts and runs ok but theres a misfire throughout the rev range,, going to look at the obvious culprits leads etc,, just wondering if there is anything not so obvious connected with the ignition system i should look at,, i've changed the plugs but the miss is still there,,

Guys Looking for some advice :confused: The car seems to have the following problems that relate to its running and I’d appreciate your thoughts. I’ll show the results in the different situations:- Idle in P - Lumpy, dips every few seconds and fire up again D - Sounds like it's...

Hmmm...... Having put a new dizzy cap and HT leads on (GSF) about a year ago, i find as i am driving home last night the car is lurching about and very lumpy when pulling away..... Pop down to Colins in Richmond this morning at 7.30 (dark) and pop open the bonnet to see a Jean Michel Jarre...

This just started today. I've got a 1990 190E 2.0 auto, 80K, FMBSH, v. good condition etc. Under hard (foot to the floor, kickdown) acceleration the car starts to stutter as it gets higher in the rev range. It will rev to the red line smoothly when under no load. The fuel pump has...