[Daftasabrush]

As above really, got an odd rattle and would like to see if another one does it or if it's just mine.

Cheers!

[Daftasabrush]

Originally Posted by Arthur D

Would an M135i do?

Sadly not, the 435i I've driven in the past doesn't do it and the engines are completely different.

[creepy coupe]

If it's an "odd rattle" It can't be right, can it?

[Daftasabrush]

I don't think so, no, but I've taken the service manager and a mechanic out for drives and neither of them can hear it, one of them told me it was injectors. With the bonnet up, there's two rattles, one is the injectors (absolutely fine) the other one is lower down in the engine. When pressing on, it almost sounds like a leaky manifold but doesn't sound like that at idle.

[creepy coupe]

Are you near Ashford,Kent?

[Daftasabrush]

Originally Posted by creepy coupe

Are you near Ashford,Kent?

no, but it wouldn't take long to be

[creepy coupe]

Originally Posted by Daftasabrush

no, but it wouldn't take long to be

I know the head man at Broadoak Ashford. 01233 500555 Ask for John Whitehead. You will get some sense out off him.

[InquisitiveA]

Originally Posted by Daftasabrush

As above really, got an odd rattle and would like to see if another one does it or if it's just mine.

Cheers!

Is the odd rattle a metallic tapping noise coming from the engine under load? Something that sounds a bit like a timing chain, very quiet but audible if the stereo is off and no-one is talking?

If so, mine has that and I understand it's normal. If not, curious as to what you mean.

I'm South West England so probably too far to help practically.

[Daftasabrush]

Originally Posted by creepy coupe

I know the head man at Broadoak Ashford. 01233 500555 Ask for John Whitehead. You will get some sense out off him.

Perfect, thank you, going down on Friday to have a go in their demonstrator. John mentioned that the salesman that is running their demonstrator has mentioned some ticking noises too so it'll be interesting to have a chat about it.

Originally Posted by InquisitiveA

Is the odd rattle a metallic tapping noise coming from the engine under load? Something that sounds a bit like a timing chain, very quiet but audible if the stereo is off and no-one is talking?

If so, mine has that and I understand it's normal. If not, curious as to what you mean.

I'm South West England so probably too far to help practically.

Yes, sounds very much like that, under load and pretty quiet which makes it difficult to pin down. John mentioned the B48 has some characteristic noises too which don't sound dissimilar. Lets hope it's not another N47 fiasco all over again...

[InquisitiveA]

Ah cool. Interested to know what you find out on Friday then, the dealership said mine was fine but if you discover different I'll raise it with them again!

[Daftasabrush]

So an interesting morning today, we basically confirmed that both cars behave exactly the same.

Took one of their techs out in mine for a few minutes, he couldn't hear the noise on acceleration but the ticking while idling when up to temperature is very clear. Then swapped over to their demonstrator and it made the same noise under acceleration and then when up to temp, the same ticking noise when idle.

While not a great sound, it's a little reassuring that both do it. I have been having fun in it today though, now I know the engine is the same as another one made a couple of months later, I was feeling much more comfortable about using the entire rev range

[k44ENT]

I know the B48 as found in the Cooper S and 330i suffererd from crank bearing failure causing the crank to move resulting in a non returning clutch pedal. Our Cooper S seems ok so far as its a late build. At 1300 miles no strange noises or rattles as yet although the fuel consumption is shocking!! My 328i is more economical on similar journeys driven the same.

[Apl440i or 335d?]

Originally Posted by Daftasabrush

So an interesting morning today, we basically confirmed that both cars behave exactly the same.

Took one of their techs out in mine for a few minutes, he couldn't hear the noise on acceleration but the ticking while idling when up to temperature is very clear. Then swapped over to their demonstrator and it made the same noise under acceleration and then when up to temp, the same ticking noise when idle.

While not a great sound, it's a little reassuring that both do it. I have been having fun in it today though, now I know the engine is the same as another one made a couple of months later, I was feeling much more comfortable about using the entire rev range

Good news!

[RobUK]

I'm in the South East, on the coast near Brighton.

The car is still under 1,500m so haven't spanked it but I shall take it out for a run in a minute and see if I can hear the noise you're reporting.

[RobUK]

Hmm... inconclusive I'd say. Idle at startup/cold seems quite quiet, but when fully warmed up there does seem to be a faint mechanical noise which could be the injectors. On the move, booting it up to 3,000-4,000 rpm at 60mph I couldn't really detect any rattling under load. Could be I'm not listening out for the right thing

Oh dear, further testing needed

Actually, since getting the car I have thought to myself that it's a lot quieter and more refined than I was expecting. Don't really get the most of the six pot soundtrack until you poke it over 3,000rpm. Maybe the MPPK will fix that

[jr2408]

Originally Posted by RobUK

Hmm... inconclusive I'd say. Idle at startup/cold seems quite quiet, but when fully warmed up there does seem to be a faint mechanical noise which could be the injectors. On the move, booting it up to 3,000-4,000 rpm at 60mph I couldn't really detect any rattling under load. Could be I'm not listening out for the right thing

Oh dear, further testing needed

Actually, since getting the car I have thought to myself that it's a lot quieter and more refined than I was expecting. Don't really get the most of the six pot soundtrack until you poke it over 3,000rpm. Maybe the MPPK will fix that

Yes it is quiet and refined. I'm looking forward to 1200miles + when I can stick it in sport and see how it sounds near the redline!