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A35AMG Engine light ON and miss fire...

Dylan7777

New Member
Joined
Nov 1, 2020
Messages
11
Location
London
Car
AMG A35
Hey everyone,

Apologies for the very long message

My second post about my A35AMG bad luck, it seems to pile up every single week... 😪


Little bit of background on the car ⬇️⬇️
The car is from June 2020, I’ve had it for no more than 6 months, done +18000miles, had its first service check on time without any problems (All green), broke in the car exactly as told by Mercedes. I always wait for engine to heat up before driving, I have done 4-5 launch controls since I had my car and lastly, I rarely drive the car on Sport+, I have Individual mode set with everything set to comfort and engine set to sport+ to use in a tunnel or under a bridge. Oh and I always use SP98 or more.

Last night, I was driving back from Lyon to London and about 100km (60miles) our of Calais on the motorway, the yellow engine light came on, the engine started to bounce up and down (the Revs were bouncing up and down too), something like a misfire, at that I was on 7th gear at about 2500rpm climbing a 4-5% hill. Thank fully this was around 4am, I have a complet loss of power and the speed went from 130km/h (81mph) all the way down to 50km/h (30mph), really lucky i was all alone, there was only 1 lane available due to road works and no emergency lane available either. I had to come to a complet stop on the live lane and restart my engine, move into Sport mode and push hard on the gas to climb the hill, the car felt like it was about to stall all the way up to 3000rpms, once that was passed, the bounces and sound of misfiring (rattles? Not sure) where significantly less, I had to drive the remaining 250km (160mph) on 4-5th gear at 4000rpm. Getting in and out of the Eurotunnel was hell, it felt like I was about to stall at any moment.

Did anyone experience this? I’ve searched everywhere in the forum and online but can’t seem to find anything about this

Could it be the catalytic filters or the injectors?
I made sure to always fill up before reaching half a tank, (I had to stop many times...)


I will be contacting Mercedes Hemel Hampstead or Watford about this today and arrange for a check up ✌️
 
It's all guess work until you get the codes that caused the engine check light read, at least you are covered by MB warranty.
 
It's all guess work until you get the codes that caused the engine check light read, at least you are covered by MB warranty.
I have managed to get Mercedes road assistance to have a look at it, I am with them right now, I will update this post for anyone else that encounters a similar problem to this in the future ✌️
 
I have managed to get Mercedes road assistance to have a look at it, I am with them right now, I will update this post for anyone else that encounters a similar problem to this in the future ✌️
Sorry to hear of more troubles. So what’s the verdict?
 
Sorry to hear of more troubles. So what’s the verdict?
Hey, the car was taken by Mercedes road side assistance the same day I called them. (Well actually, due to the Aero pack, the car couldn’t get on the tow truck so I had to drive it all the way to Mercedes Watford behind the tow truck)

Turns out Cylinder number 3 was broken and they are replacing the Cylinder Head. The car has been with them since 21st December now and I’ve been given a replacement car from Europecar, a C Class 5 doors C300d. I’ve called them yesterday that I was really unhappy with the replacement car given, I bought an AMG but was given a family Diese.
 
In your position I would just be grateful you have a courtesy car.
I was given a C220d whilst my E63 was being serviced. It's no big deal and a lot better than the dealer saying, sorry, no courtesy cars available.
 
In your position I would just be grateful you have a courtesy car.
I was given a C220d whilst my E63 was being serviced. It's no big deal and a lot better than the dealer saying, sorry, no courtesy cars available.
I agree with you on this one, I just miss the exhaust sound a lot, feels like a long time
 
Hey, the car was taken by Mercedes road side assistance the same day I called them. (Well actually, due to the Aero pack, the car couldn’t get on the tow truck so I had to drive it all the way to Mercedes Watford behind the tow truck)

Turns out Cylinder number 3 was broken and they are replacing the Cylinder Head. The car has been with them since 21st December now and I’ve been given a replacement car from Europecar, a C Class 5 doors C300d. I’ve called them yesterday that I was really unhappy with the replacement car given, I bought an AMG but was given a family Diese.

I made a mistake in my previous update, the part being replaced is a Cylinder head**

Part still on order for a while now
 
Regarding OP's initial post.
Why do you wait for engine to heat up before driving, and how long idling is that?
 
Keep us to date with whats happening,rare event that a new head needed on a nearly new car.
 
You have good mileage on your car, so at least they cannot blame it on low mileage as they did with my issues with the swirl flaps!

Good luck with your repairs. Mine has been in the dealership since 23rd Dec with no hire car from MB.
 

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