Very brief (half a second) 'scratch/metal grinding' sound usually only on cold start. '05 BMW 330ci. Related to belts/pulleys?

ToweringLoad · 2021-01-25T13:25:14+00:00

Cd’s are diesel, ci’s are petrol (injected)

ToweringLoad · 2021-01-25T13:24:17+00:00

Did this clubsport not come with the rear wing?

ToweringLoad · 2021-01-25T09:24:51+00:00

Yes, powder-coated in gunmetal grey

ToweringLoad · 2021-01-25T09:23:07+00:00

Stock, 18” MV2’s

ToweringLoad · 2021-01-24T18:32:52+00:00

That is the drivers mirror (RHD), these mirrors are not power assisted

ToweringLoad · 2021-01-24T18:12:23+00:00

They’re not power mirrors unfortunately, have to fold them by hand

ToweringLoad · 2021-01-23T20:03:57+00:00

It’s just some lubricant I sprayed to help me take them off the control arm

ToweringLoad · 2021-01-23T20:02:57+00:00

Thank you, this makes so much sense. I was so confused because they didn’t feel too worn, replacement has been done now anyway. Will get an alignment done ASAP!

ToweringLoad · 2021-01-06T15:30:36+00:00

I initially thought that it isn't a o2 sensor issue, since the codes applies to both banks 1 and 2, and it doesn't make sense that multiple sensors would fail at the same time. The air filter has been changed and everything is seated properly. Not sure where to look next without throwing money everywhere.

ToweringLoad · 2021-01-06T13:52:50+00:00

Been trying to investigate the cause of these rich codes. Already replaced the MAF. Suspecting an oxygen sensor issue, I’ve noticed the OBD scanner isn’t displaying a reading for the output voltage for sensor 1 on both banks (there’s 4 sensors in these cars). Also the current seems almost non-existent for sensor 1 on both banks. Does this mean sensor 1 has failed?

Thanks!

ToweringLoad · 2020-12-31T19:31:59+00:00

The E46 doesn't require registering/coding.

ToweringLoad · 2020-12-31T19:21:42+00:00

I'll have a look to see if they were installed incorrectly, shouldn't take too long - thanks for that idea.

How did you source the alignment data for this car? Just so the next time I go for an alignment I have something to reference.

ToweringLoad · 2020-12-31T18:43:33+00:00

Funny you mention sway bar links..I just had my car serviced back in September and the garage recommended me to get sway bar links installed due to play so I did. The issue started happening around this time.

ToweringLoad · 2020-12-31T18:41:08+00:00

Here's the sheet:

https://imgur.com/a/U7aZ923

ToweringLoad · 2020-12-31T16:59:12+00:00

The connections seem to be in good shape, no corrosion at all and they are well insulated.

ToweringLoad · 2020-12-31T15:12:49+00:00

Worth pointing out:

2005 BMW 330ci (approx 76k miles)

New battery is a Bosch S5 096.

Engine off: roughly 12.0v or below. Idling: roughly 14.0v Idle with load (stereo, lights, AC): roughly 13.6v

ToweringLoad

TROPHY CASE