E90 M3

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E90_M3Ross

Original Poster:

35,179 posts

214 months

Thursday 21st March
quotequote all
d_a_n1979 said:
E90_M3Ross said:
So I hadn't heard anything since Tuesday. Considering they're shut on Friday and I wanted to collect the car Saturday, which means that it'd need to have been done by this evening.

I messaged them just after midday today. It is now gone 8pm. I have heard nothing.

I don't even know what to think now or how to feel about the whole situation now. I can at least say I am beyond fed up.
Really feel for you with this palaver Ross; you've every right to be frustrated

Fingers crossed you get an update in the morning
They don't work on Fridays, so I'm not hopeful.

E90_M3Ross

Original Poster:

35,179 posts

214 months

Tuesday 26th March
quotequote all
Well it's still a bit of a mystery.... Maybe.

KYCS saying it looks like the rear sensor is on thr wrong way. They don't have a proper lift etc so don't have good access to it, and have had to order some lifting equipment in. That was Friday night they told me.

Still heard nothing since. Flipping the sensor is a 10min job and, I believe, can be done fairly easily by removing a wheel. Could it be the problem? Looking online, yes. But we'll see.

If I hear nothing by maybe 4pm or so tomorrow I'll message them. I've made it clear I really would like the car back this weekend, but I absolutely NEED it back the weekend after that as I need to do some travelling, and I'm currently without a car.

E90_M3Ross

Original Poster:

35,179 posts

214 months

Tuesday 26th March
quotequote all
BenS94 said:
E90_M3Ross said:
Well it's still a bit of a mystery.... Maybe.

KYCS saying it looks like the rear sensor is on thr wrong way. They don't have a proper lift etc so don't have good access to it, and have had to order some lifting equipment in. That was Friday night they told me.

Still heard nothing since. Flipping the sensor is a 10min job and, I believe, can be done fairly easily by removing a wheel. Could it be the problem? Looking online, yes. But we'll see.

If I hear nothing by maybe 4pm or so tomorrow I'll message them. I've made it clear I really would like the car back this weekend, but I absolutely NEED it back the weekend after that as I need to do some travelling, and I'm currently without a car.
They'll have a proper lift in I'm certain
They don't, I know that for sure, they mentioned it some time ago. They only deal with headlights and don't do mechanical stuff.

E90_M3Ross

Original Poster:

35,179 posts

214 months

Tuesday 26th March
quotequote all
Yeah I hope they get back to me soon and just say "yep, problem sorted!"

E90_M3Ross

Original Poster:

35,179 posts

214 months

Tuesday 26th March
quotequote all
So, an update.... And bit of an odd one



No idea why it won't go on "correctly" but they also sent this video

https://drive.google.com/file/d/1xz1NXfsQbmhEKsQOS...

Hopefully they'll get it sorted and if I'm lucky I can collect Saturday.

Edited by E90_M3Ross on Tuesday 26th March 12:31

E90_M3Ross

Original Poster:

35,179 posts

214 months

Tuesday 26th March
quotequote all
d_a_n1979 said:
Wonder if they've had any issues with this Ross:

https://www.e90post.com/forums/showthread.php?t=49...
If they're telling the truth, which I'm inclined to think they are now, then this will not be the issue.

E90_M3Ross

Original Poster:

35,179 posts

214 months

Tuesday 26th March
quotequote all
So is it possible to mount the sensor at an incorrect angle?

Thanks! I feel like we're getting there. Slowly!

E90_M3Ross

Original Poster:

35,179 posts

214 months

Tuesday 26th March
quotequote all
Thanks Dan and Ben. Hopefully I'll hear something else later. They're open until quite late tonight so fingers crossed they can continue plugging away at it and sussing it out.

As I'm sure you can all understand I'm properly peeved with the whole debacle now. I REALLY hope I can get the car back this Saturday.

E90_M3Ross

Original Poster:

35,179 posts

214 months

Tuesday 26th March
quotequote all
Thanks. I have put this to them and they will be looking into it.

E90_M3Ross

Original Poster:

35,179 posts

214 months

Wednesday 27th March
quotequote all
So I had more not-so-positive updates last night.

KYCS are seemingly baffled. If they set the sensor height, remove both sensors, turn the ignition on, the lights stay put. If they plug in one sensor, front or rear, the lights immediately drop down.

They showed me a video of another set of lights on top of my car doing the same thing (not working) and said they were OEM totally unmolested lights, so I am sure they're telling the truth.

They don't have a ramp and can't get good access to the sensor bracket or something. The rear sensor hits the subframe so I reckon that's the issue. They don't think it's the FRM. It is a new front sensor but we're going to order a new rear just to rule that out. They did say the rear plug looked a little corroded.

They did say that fitment issue is negated by manually setting the sensor positioning and output voltage though.

I'll see if I hear more today, but this just keeps getting worse.

I've booked the car in for April 12th for a pre Scotland jaunt check by a very, very well regarded BMW indy (local BMW dealer sends troublesome cars there!) and have mentioned this issue.

KYCS don't have a ramp, which doesn't help but I get the feeling they are stuck as to where to go from here.

I'm beginning to wonder if it'll ever get fixed?! Surely someone can fix it FFS?

E90_M3Ross

Original Poster:

35,179 posts

214 months

Wednesday 27th March
quotequote all
I'm now booked in with a well reputed BMW indy in 2 week's time for a pre-Scotland check over and will get this looked at to. I've given them a run down of the situation.

I am not sure if kycs will be looking at the mounting of the sensor as they don't have a ramp, but I feel it's got to be something simple!

And yes, I'm beyond fed up now. I was beyond fed up a few weeks ago, but it's getting to be an absolute joke now.

And yes, KYCS feel it's something "module back" / sensor related. Doesn't help they don't have a ramp though. I REALLY didn't want to go back to pick the car up from them and still have to take it elsewhere AGAIN but looks like I'll need to.

Edited by E90_M3Ross on Wednesday 27th March 09:12

E90_M3Ross

Original Poster:

35,179 posts

214 months

Wednesday 27th March
quotequote all
pmorg4 said:
If there's a problem with the sensors that means the FRM is not getting a plausible signal, it will aim the lights at the lowest setting (fail safe). You really need to get it plugged into ISTA/INPA and read the sensor signals while moving the sensor arm to check what signal is being received by the FRM. From there you can start to eliminate issues with the sensor itself, wiring, etc.

A few posts mention that the headlights worked prior to the work being done, but as there was a lot of suspension work it's entirely plausible that sensors, fitment or wiring damage could all be a factor.

Presumably your indy will have all the right diagnosis gear and can get to the bottom of this quite quickly. It should be a straightforward problem to solve by someone who knows what they're doing, there aren't that many links in the chain and a good mechanic will methodically eliminate each one rather than throwing new parts on and hoping for the best.

Good luck smile
They've read the live sensor data and seems to be reporting OK.

E90_M3Ross

Original Poster:

35,179 posts

214 months

Wednesday 27th March
quotequote all
car user said:
If the rear sensor hits the subframe then it's probably on backwards.

If you are located near London, I would suggest Birds in Iver. Might be wise to get a replacement sensor from Autodoc just in case the existing one has been damaged.

You can get to it quite easily with just a single jack. It's held on with a couple of 10mm bolts so you don't need a lot of tools.
I've said this and I think they're ordering a new rear sensor today.

E90_M3Ross

Original Poster:

35,179 posts

214 months

Wednesday 27th March
quotequote all

E90_M3Ross

Original Poster:

35,179 posts

214 months

Wednesday 27th March
quotequote all
pmorg4 said:
They need to move the sensors and check the voltage readings changing smoothly.

I'd be surprised if it's the FRM, given its ability to read the sensors and there being no errors stored. Particularly if it's doing the "up/down" initialisation which shows it's controlling the motors properly. It's not impossible, but that would be an unusual failure mode, and quite a coincidence with all the other work that's been done.
They don't really think it's the FRM. The sensor voltages change as they should.

I'm very frustrated with the fact that they say the rear sensor is hitting the subframe (ie not fitted correctly) and they haven't repositioned it. It seems sensible to do that FFS.

As I think I said earlier, car is now booked in with a highly reputed indy 12th April for a general check over and now this too. Kycs have spoken to them and given them a run down of the situation. It wouldn't surprise me if they reposition the sensor and it works straight away.

E90_M3Ross

Original Poster:

35,179 posts

214 months

Wednesday 27th March
quotequote all
They've asked if the ride height has changed....which I reckon it has, but only by maybe 5-10mm.

They said the sensor moves 270 degrees to go 1-5V - is that right? I wonder if it's meant to be 90 degrees, and whether flipping it round (to rotate the other way) would resolve this? I'm not sure.

E90_M3Ross

Original Poster:

35,179 posts

214 months

Wednesday 27th March
quotequote all
Willber said:
Get the car back. Get a jack, flip it round and see what happens? Do you do any work on your cars? This is an easy way to start learning if not! Otherwise we might have to have a crowd fund type thing to club together like minded people nearby and have a stab at it! The wait for the indy on 12th will be agonising. I wouldn't be able to resist having a play in the meantime
No I don't do any work myself, historically I make things worse hehe

As an aside it will be interesting to see how much KYCS charge me for all of this diagnostic work.....thoughts anyone??!

Edited by E90_M3Ross on Wednesday 27th March 15:29

E90_M3Ross

Original Poster:

35,179 posts

214 months

Wednesday 27th March
quotequote all
WE HAVE WORKING LIGHTS!!

The cause? The FRM module! They didn't make it clear but they sorted the sensor positioning out some time ago and still not working. Basically this was their troubleshooting....

Plugged in another set of OEM lights. Same problem - headlights dropping to lowest position.

Check the live sensor data - all voltages are fine and change when the sensors are moved. No fault codes reported anywhere.

Rear sensor looked to have been mounted wrong - remove and refit - still not working.

Manually override the sensor values using software - lights raise up. Ignition on.... Lights immediately drop back done.

Manually override sensors and remove both sensors..... Ignition on.... Lights stay put. Plug in either front or rear sensor only.... Lights immediately drop to bottom again.

Only part left was FRM but no fault codes reported so wasn't suspected..... Changed FRM.....working immediately!

Guy said he now knows self levelling systems like the back of his hand laugh says he's basically been up in the small hours on the morning trying to work this out. In 12 years working in lights he's never had this issue.

E90_M3Ross

Original Poster:

35,179 posts

214 months

Wednesday 27th March
quotequote all
They have already sent me a video of them levelling properly! I can't pick up this weekend but I'll get it next weekend. At least I know it'll be done. I'm so, so happy biggrin

I owe kycs a big thanks, they have persisted with this issue despite ruling the lights out a long time ago. I'll have to ask if they have a favourite beer or something, or perhaps some Amazon vouchers. He's been messaging me as late as after 10pm some nights about this issue.

E90_M3Ross

Original Poster:

35,179 posts

214 months

Wednesday 27th March
quotequote all
Here's the latest video from KYCS

https://drive.google.com/file/d/1zXOnhUh6PWjeXkK5x...

I do feel for the guy, he said he's been up in the small hours on the mornings trying to suss this out. Must confess I feel bad for saying, numerous times, I thought it was the headlights. They certainly pulled through in the end.