E91 Straight Six Bearding

[stevesuk]

Court_S said:

stevesuk said:

Is it an easy DIY job to check?

Should be. The top of the box cones off relatively easily once you’ve removed both parts of pollen filter housing. If you shine a torch down into the box you might see water.

My wife’s 330i DME shat itself last year. When I removed the actual DME, there was a white tide mark of corrosion around it.

Thanks... Just taken apart the plastic and rubber jigsaw puzzle, and it's dry as a bone in there, which is good to know for peace of mind if nothing else. Hopefully it stays that way, assuming I put everything back together again correctly

[Blueprint]

helix402 said:

The B12 kit has slightly better ride quality than standard sport suspension.

Ah well that is encouraging, I look forward to trying it later this week

[Court_S]

stevesuk said:

Thanks... Just taken apart the plastic and rubber jigsaw puzzle, and it's dry as a bone in there, which is good to know for peace of mind if nothing else. Hopefully it stays that way, assuming I put everything back together again correctly

That’s good news on one hand, but in the other you’re no further forward with your potential issue.

[Swervin_Mervin]

Court_S said:

stevesuk said:

Thanks... Just taken apart the plastic and rubber jigsaw puzzle, and it's dry as a bone in there, which is good to know for peace of mind if nothing else. Hopefully it stays that way, assuming I put everything back together again correctly

That’s good news on one hand, but in the other you’re no further forward with your potential issue.

Yeah that's some.good news at least. I hear anything about hesitation with these and DME is my first thought.

Worn driveshafts sounds odd.

[helix402]

Swervin_Mervin said:

Yeah that's some.good news at least. I hear anything about hesitation with these and DME is my first thought.

Worn driveshafts sounds odd.

It does. Never heard of driveshafts causing the symptoms given.

[Court_S]

JakeT said:

Sam I posted on your thread, but use a temp plug and then drill it and stick a larger bolt in it.

MajorMantra said:

Good luck! My other thought was a helicoil...

I think I managed to sort it last night with a kit I bought from Amazon.



I ran an M13 tap through it (tap was covered in Vaseline to catch the swarf) and the replacement bolt torqued up as it should (my new posh torque wrench was much better than the old one). I then ran 3 of 4 litres of oil through it and there was no swarf in it.

Filled it up and it ran fine. I’ll have a check tonight to make sure there’s no weeping etc.

[JakeT]

Well it’s been a bank holiday and so I’ve been spending time with my best friends…




Pulling it into the garage we had a mileage moment…



After various wire brushing, rust converting and painting…




fortunately I had some silver in stock so the arch lip matches relatively versus the brown before. I felt a little smug as there wasn’t a hole in the rear arch too, just a rusty patch, so that was treated and painted too.

This should hopefully buy me some time, as we’re moving house in the next few months. I may still have a new car next year, but we’ll see. I like this one and it drives well enough, plus I have the morbid curiosity of how far it will go.

[AmirGSXR]

My video tribute of sorts to the E90 N52 330i I have owned for the last six years.
Learnt many things over the years from this very thread.

https://youtu.be/jOJzZR0MCTA?si=k_vUEcEczSTCh_UY

[ATM]

helix402 said:

Swervin_Mervin said:

Yeah that's some.good news at least. I hear anything about hesitation with these and DME is my first thought.

Worn driveshafts sounds odd.

It does. Never heard of driveshafts causing the symptoms given.

I'd be also thinking Prop / Diff / Dual Mass FW if its mechanical. My money is on the flywheel if it's manual. My friend had this with his Porsche. The old Flywheel was worn out but had been left on with a new clutch. It had almost 90 degrees of slop but when driving was felt only occasionally.

He initially chased electrical / engine sensors looking for hesitation. Then suspension looking for play. Never checked the drive shafts. He was starting to think diff - there is no prop on his car.

Like I say eventually turned out to be flywheel. You can't get anywhere close to that much slop with any of the other mechanical components. A driveshaft could maybe only have a few degrees of slop. Potentially you are adding up that few degrees from each of the 4 joints to give you 4x that few degrees but I just can't imagine how you'd feel that from the seat.

If auto I'd be asking some gearbox people if the box or torque converter can give you this symptom.

[williskwl]

So after replacing the rear screen wash pump and the front washer pump due to both leaking and the rear no longer screen washing, tested with a little water in the tank and the tank leaks too…. Great. New tank on its way.

Also think I was a bit too early with the wet carpets, had a wet carpet again after some rain. The door seals are fine, the sunroof drains are blocked so trying to unblock them. Lots of mud freed so far but still blocked.

In the meantime to put my mind at rest, surely if the air con drain was blocked (and in turn pumping out into rear right footwell) it wouldn’t blow ice cold without issue?

[chris-s3]

Swervin_Mervin said:

Yeah that's some.good news at least. I hear anything about hesitation with these and DME is my first thought.

Worn driveshafts sounds odd.

Yes I had the same with my DME, hesitation under load, turned out it was a water damaged DME, had the old one cloned to 2nd hand replacement and hesitation is gone

[chris-s3]

Has anyone purchased a boot badge from this eBay seller?
has a E91 set listed with 82mm front and rear, they have confirmed this has the backing plate to fit the rear on a E91

https://www.ebay.co.uk/itm/116165195645?mkcid=16&a...

[MajorMantra]

No, but I'm intrigued.

[chris-s3]

Maybe not a good idea when looking at their feedback

[helix402]

chris-s3 said:

Has anyone purchased a boot badge from this eBay seller?
has a E91 set listed with 82mm front and rear, they have confirmed this has the backing plate to fit the rear on a E91

https://www.ebay.co.uk/itm/116165195645?mkcid=16&a...

This is who I bought badges from. They don’t have tailgate badges. See their feedback.