Couple of issues E92 330D M SPORT

[geg1992]

Hi all,

Recently bought an E92 330D M SPORT

It's from a used garage and there are a couple of things I'd like to get to the bottom of, as it's under warranty so I can get any parts that need replacing done!

The first one is that every morning when the engine is very cold, so only once a day, when I start the car, it shakes and the idle is lumpy for about 5-10 seconds at the most. It is then fine and I have no other idle / running issues as such. I see it has an invoice for 6 glow plugs having been replaced in the last year or 2. The specialist suggested it could be an injector playing up when cold until it gets the correct spray pattern? I suggested this to the garage I bought it off who said it's rubbish - although they would!

Any idea on this one?



The second potential issue I have is that sometime when using 'kick down', it will select the appropriate gear but it feels like when it's between 3.5k - 4.5k RPM there isn't that much power, then when it changes up to the next gear once I've made a bit more progress, it really pulls hard and sucks me into my seat, like you'd expect.

Has anyone experienced similar?


I'm intending on changing the gearbox oil etc soon but I'd like to get any issues sorted first.


It's done 85K miles and is a 58 Plate - very impressed so far - 53mpg on a recent run!

thanks for any help you can provide.

[fido]

geg1992 said:

The first one is that every morning when the engine is very cold, so only once a day, when I start the car, it shakes and the idle is lumpy for about 5-10 seconds at the most.

Imbalance between cylinders - so the injector diagnosis seems plausible - or a problem with compression.

[geg1992]

fido said:

Imbalance between cylinders - so the injector diagnosis seems plausible - or a problem with compression.

Thanks for coming back to me. That is my fear Expensive bill and may be hard to prove until it goes completely poop.

Although, the garage mentions how a lot of diesels of this age / mileage will be like that for years before any actual issues.

My MPG and running after 5-10 seconds is fine though really.

I'm hoping a smooth running test will show enough evidence.

[Elliot2000]

Glow plug ecu failin is very common- can burn out the new glow plugs pretty quickly if it fails and keeps supplying glow plugs.