[bimmermech123]

Originally Posted by StradaRedlands

Yes, I was lucky to get a full set! They were backordered for a long time before that, and then had a small shipment come in. I was checking every other day waiting for them, and finally saw they were in stock.

Now I'm waiting patiently for an alternator for my wife's F10. Wait time and price keep increasing in tandem... :-(

A lot of people can't wait for certain parts, like the control arms, and have resorted to trying out other brands. The 034 Motorsport front control arm kit seems to becoming an alternative to the TRW M3 control arm kit. Link to thread which discusses peoples opinions on it: https://www.e90post.com/forums/showthread.php?t=1914169

[2one3E90]

Originally Posted by StradaRedlands

Yikes, I had to go check... $104 back on Jan 18th :-(

why did it go up omg. Anyways i ordered it. Putting it on my e90 should bring the wind noise down right? Or should i get a euro windshield replacement and they will install that part for me also?

[StradaRedlands]

Originally Posted by 2one3E90

why did it go up omg. Anyways i ordered it. Putting it on my e90 should bring the wind noise down right? Or should i get a euro windshield replacement and they will install that part for me also?

¯\_(ツ)_/¯

Probably won't affect the wind noise, it's more to keep moisture from dripping down into your heater fan.

[Desert Mike]

Update on my E90.

Did air filter changes (cabin and engine air) at 190K ($50 parts, $40 labor). Put in a new mass airflow sensor because I was having stuttering issues ($200 part, $70 labor). My theory was the engine was starving for air and the two services mentioned really helped, but... didn't entirely fix the problem. Anyone else have the stuttering problems? Happens when hot and only at low RPMs only when taking off from a long traffic light. Funny thing is the air filter and MAF sensor changes greatly helped this problem. I'm thinking I have at least one fouled plug (replaced 30K mi ago). Anyone else have a good theory? Plugs are rather cheap and shouldn't cost much for labor. Not sure whether to replace plugs with NGK Iridium or the Bosch finewire.

[ctuna]

Has it ever had a set of new coils or new vanos solonoids?

Dr Dean has a bunch of video's about BMW N52's

[mainbearing]

NGK. That is what I use on the BMW and our Audis.

Could it be the transmission? Or the oxygen sensors? Also check valve cover and CCV 3-way pipe vacuum leaks in addition to the DISA valves. If you pull the intake, change out the starter. I also changed out the alternator voltage regulator that was causing a couple of over voltage codes and misfires.

Originally Posted by Desert Mike

Not sure whether to replace plugs with NGK Iridium or the Bosch finewire.

[Pittz1]

06 N52 w/ 210k. Typical leaks and then I fix them. The valve cover gasket leaks every year. I do everything to the T. To include the tightening sequence. Still leaks back passenger corner. I do the work myself when things break.

Now the oil pan gasket is leaking. Not sure if I even want to tackle that. Even on quick jacks it can be a PIA.

[Desert Mike]

Originally Posted by ctuna

Has it ever had a set of new coils or new vanos solonoids?

Dr Dean has a bunch of video's about BMW N52's

Yes, new coils 30K mi ago (Bosch) at the same time I replaced plugs (also Bosch) and vanos solonoids about 100K mi ago. No codes.

[Desert Mike]

Originally Posted by mainbearing

NGK. That is what I use on the BMW and our Audis.

Could it be the transmission? Or the oxygen sensors? Also check valve cover and CCV 3-way pipe vacuum leaks in addition to the DISA valves. If you pull the intake, change out the starter. I also changed out the alternator voltage regulator that was causing a couple of over voltage codes and misfires.

Transmission was serviced at 90K and 190K mi. Shifts smoothly. Indy who did the service said tranny was OK. O2 sensors are a possibility as I'm on originals. Would that be heat related or be improved by air filter/MAF replacement? Idle is smooth, does not run rough, new starter at 150K. Vacuum leak and DISA valves would trigger a code? Indy doesn't see any codes.

[Desert Mike]

Originally Posted by Desert Mike

Yes, new coils 30K mi ago (Bosch) at the same time I replaced plugs (also Bosch) and vanos solonoids about 100K mi ago. No codes.

Thanks for this...

[M3_Legend]

I recently sold my 2006 wagon with 240,000 miles I that car ran like new. I have been so surprised with the build quality the E90 has. I didn't even want to sell it but a good friend of my mine was Begging me to see it to him. Lucky of me I found a 2007 Manuel wagon with 169,000 on the clock and runs like new. maintenance goes a long was on this cars. If you up keep them they can last for ever.

[John 070]

Originally Posted by hassmaschine

People complaining about E90 parts tripling in price overnight or going NLA.. reminds me of buying parts for my E30 10 years ago. I don't even look anymore, it's too depressing..

Wow was not aware. I've always found parts to be affordable.

But I have seen stuff I bought in 2020 to be almost doubled. Such as that 55A RV power supply that I use as a power supply for the cars, got it for $127 in 12/20, and it's like $225 now. As the draw went from 0.x to 22A, I saw the voltage drop from 13.8v to 13.2v, so it does what it's supposed to...

https://a.co/d/fuFYnN8

[Greyfox]

Originally Posted by bimmermech123

A lot of people can't wait for certain parts, like the control arms, and have resorted to trying out other brands. The 034 Motorsport front control arm kit seems to becoming an alternative to the TRW M3 control arm kit. Link to thread which discusses peoples opinions on it: https://www.e90post.com/forums/showthread.php?t=1914169

TRW replacement rear suspension links.

https://www.ebay.com/sch/i.html?_nkw...temCondition=3

Edit... and yes, an E9x can last well past 200k if taken care of.

[Desert Mike]

Dr. Dean video tells me it's probably the DISA valve. Part ranges from $100 to $300. Not sure how much the labor will be but I will talk to my friendly Indy BMW specialist. Dr. Dean says the DISA valve will not trigger codes, could cause low RPM hesitation and that is what I am experiencing.

OK, here's an update on the above. Bought a DISA valve (VIACO) - $120. Took the car in yesterday to install the new one. Turns out my intake manifold does not have a DISA valve!! Indy didn't charge me anything fortunately. Says I have a "rare" N52K rather than an N52N. VIN decoder confirms. Anyone know the production variation? REALOEM says I have an N52N but has some parts in the intake manifold ghosted out (including the DISA valve) and are not listed in the parts list below the picture.

I don't know what the difference is between the K and the N and can't really find reference to it anywhere. Well, that's one part I don't have to worry about, so I save money and go to the next item on the list (O2 sensors).

[Desert Mike]

Replaced the pre-cat O2 sensors. Made no difference in the (off-idle) hesitation problem.

Turns out I have a leaky fuel pump. Well now, that could be the problem I suppose. Replaced the plugs (with NGK Iridium) which were all black (old Bosch plugs). Not sure if it was due to the change in plugs from the previous set (NGK's which were grey). Helped a bit, however, it seems like a stutter/hesitation could be (or most likely would be) caused by a malfunctioning fuel pump. Feels like a misfire but no codes.

Any ideas?

[mecheng77]

Clean vanos solenoids and maybe replace them