[jhandy2]

So today I was pushing it through the gears and I got a low power light.

Turned car off and on it was fine and went.

I've read it could be to do with the ports being clogged up.. Just driving home thrn I'll plug the Carly in and see what's what on there.

should add.. 335 50k. had fuel pump and waterpump last year

[Danstrolie]

Mine was the same and ended up being the 30ff low boost code. I am currently waiting to get it back from the dealer where I bought it. They are repairing or replacing a turbo due to a bad wastegate.

It could easily be a boost leak though so check there is boost in the system. A common way of repairing the fault is replacing the vacuum hoses but unfortunately that didn't fix mine.

[jhandy2]

I've got warrenty so I might just call them. Be cheaper I imagine. It does boost well up ubtill high end of 3rd that's when it starts playing up

[Chappers 71]

Well, that didn't take long
Could be so many things & it can be a long process getting these kind of issues sorted but not always.

Get the codes read, it helps if you have a friendly indy guy or buy yourself a code reader. As you've just bought it from a dealership & paid a premium take it back & find out how good their warranty is.

[Danstrolie]

Yeah and you always have your consumer rights depending on how long it is since you bought it.

Hopefully it's nothing major, my local Indy was a great help and gave me a lot more to go back to the dealer with.

[jhandy2]

Originally Posted by Chappers 71

Well, that didn't take long
Could be so many things & it can be a long process getting these kind of issues sorted but not always.

Get the codes read, it helps if you have a friendly indy guy or buy yourself a code reader. As you've just bought it from a dealership & paid a premium take it back & find out how good their warranty is.

It drives fine all day everyday done 500 miles since Saturday lol.
It's just when it gets abused it throws it's toys out.

Calling bmw later when I'm home. I'd rather continue the bmw history than use where I brought it from

[Chappers 71]

Yeah mine will very occasionally throw a engine management light under hard acceleration, i think a lot of 335is do. On mine I suspect a fuel pressure sensor but it doesn't do it often enough for me to be overly bothered about it just yet.
Unless you have or are going to get a bmw extended warranty I'd recommend you find a good Indy. Most of us on here have had less than good service from main dealers. They will charge you around £120 just to read the fault memory

[jhandy2]

the codes its throwing under motor / engine are..

002A87 exhaust vanos
003100 boost pressure controll 2


spoke to bmw local to me today and they said that the car shouldn't be driven in 3rd gear above 60 :/
wants me to book it in but i think ill try another dealer elsewhere, didn't like his attitude when he wanted me to pay but i said i had warranty..

[Chappers 71]

Yeah you'll get the 3100 anytime the engine looses boost, the 2a87 may well be the vanos solenoid

[Andy198712]

Originally Posted by jhandy2

the codes its throwing under motor / engine are..

002A87 exhaust vanos
003100 boost pressure controll 2


spoke to bmw local to me today and they said that the car shouldn't be driven in 3rd gear above 60 :/
wants me to book it in but i think ill try another dealer elsewhere, didn't like his attitude when he wanted me to pay but i said i had warranty..

Shouldn’t be driven above 60 in 3rd? Why does he think people buy fast cars lol what’s that about half way through the Rev range?
Think your right to look else where

[jhandy2]

Originally Posted by Andy198712

Shouldn’t be driven above 60 in 3rd? Why does he think people buy fast cars lol what’s that about half way through the Rev range?
Think your right to look else where

According to him it's not geared to do so..
It's about 3500rpm. I laughed at him and said he didn't know what he was in about 😂 and ended the call.

[Adieu]

60... km/h?

Shouldn't that be reachable in roughly ANY gear?

[jhandy2]

Originally Posted by Adieu

60... km/h?

Shouldn't that be reachable in roughly ANY gear?

60mph

[jhandy2]

quick update been out in it today giving it some stick (doing the same as when the fault popped up) absolutely nothing. i can honestly say i tried to get it to throw the fault up.

probably still get a health check carried out by bmw to be safe.

[basim07]

It’s likely your vanos solenoid. I had the exact same issue on my N53 330i, except mine started misfiring after across multiple cylinders, when car restarted it was fine again. It threw no codes except multiple misfires with me and also once threw both camshaft sensors codes, Also had lumpy acceleration thereafter on the most recent occurrence which didn’t resolve with clearing the codes.
It always happened on hard acceleration / under load accompanied by limp mode

I cleaned my vanos solenoids 2 days ago and swapped them around and issue seems resolved fingers crossed

The vanos solenoids can be difficult to diagnose and don’t always present clearly but The fact yours has thrown a vanos code I’m oretty sure it will be that, it’s the most likely cause, if it isn’t then other fault that can present with a vanos code is camshaft sensors. Similarly camshaft sensor codes can actually be the vanos.


There’s a few DIYs on how to Clean VANOS solenoids inc on pelican parts a good one I used, it’s how to change the solenoids but in first instance just clean. 30 min job, basic and easy, just don’t drop anything into the engine. Clean with electrical contact cleaner / MAF cleaner, let dry properly and then SWAP them round when reinstalling (both solenoids are exact same parts).

Quick easy and essentially free to do, i’d do this first before anything else.

[jhandy2]

heres the faults its throwing. happed again today so as you meantion i think ill find and clean the solenoid

[jhandy2]

so went into bm for health check and everything was all spot on, they found the vanos fault, cleaned it up, and swapped the 2 over. so far no codes but if there is il take it back and get a swap