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LSZ2 Stepping Motors - Headlight aim

Discuss problems you have had or are having with your Z4
G600
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LSZ2 Stepping Motors - Headlight aim

Post by G600 » Tue May 24, 2022 10:27 pm

It could be, mine would do strange things like go down and not come back up even if the car wasn't moving. I actually fixed one break in the cable near the light (thought I'd solved the problem but I hadn't) and then found another further back where it goes up against the chassis.
E85 3.0

wolverine2k
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LSZ2 Stepping Motors - Headlight aim

Post by wolverine2k » Tue May 24, 2022 10:40 pm

G600 wrote: ↑Tue May 24, 2022 10:27 pm It could be, mine would do strange things like go down and not come back up even if the car wasn't moving. I actually fixed one break in the cable near the light (thought I'd solved the problem but I hadn't) and then found another further back where it goes up against the chassis.
I went back to my garage and they said that they couldn't pass the MOT if I delete the self-levelling as they know it's there and also the manual levelling won't work anymore which is an MOT failure.

LCM didn't arrive today so didn't try that. I'll try and cut back the wires as far back as I can go on the weekend. I'll have to brake off the cable ties to loosen the cable to be able to get further down. If that doesn't solve it, my garage has said that they can replace the wiring... except I know they're going to rip me off.

Thanks!

wolverine2k
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LSZ2 Stepping Motors - Headlight aim

Post by wolverine2k » Wed May 25, 2022 5:27 pm

LCM arrived... same issue. Definitely wiring then. Happy days. I'm making a real nice collection of parts that I never needed :D

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Zulu4
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LSZ2 Stepping Motors - Headlight aim

Post by Zulu4 » Wed May 25, 2022 5:56 pm

Your car is going to be like Trigger's broom soon. :P
https://youtu.be/LAh8HryVaeY
2007 3.0si Auto Sport Roadster. Whippy.
Previous:
2003 3.0i SE Roadster. Whippy.

wolverine2k
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LSZ2 Stepping Motors - Headlight aim

Post by wolverine2k » Wed May 25, 2022 6:01 pm

Zulu4 wrote: ↑Wed May 25, 2022 5:56 pm Your car is going to be like Trigger's broom soon. :P
https://youtu.be/LAh8HryVaeY
Hahahahahaha πŸ˜‚

I don't think it's far off!

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kis
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LSZ2 Stepping Motors - Headlight aim

Post by kis » Wed May 25, 2022 6:39 pm

At least now you know the LCM is good and your collection of motors are good :rofl:

And thanks to G600 you know the break is probably in wiring somewhere between the connector and the back of the chassis, under the wheel liner :thumbsup:
My E85 Z4 3.0i SMG

BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
X6 - E71

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LSZ2 Stepping Motors - Headlight aim

Post by wolverine2k » Wed May 25, 2022 7:30 pm

kis wrote: ↑Wed May 25, 2022 6:39 pm At least now you know the LCM is good and your collection of motors are good :rofl:

And thanks to G600 you know the break is probably in wiring somewhere between the connector and the back of the chassis, under the wheel liner :thumbsup:
Yup, had that wheel liner off while I was changing the ABS pump, good thing it's easy to take off πŸ˜‚

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LSZ2 Stepping Motors - Headlight aim

Post by wolverine2k » Wed Jun 01, 2022 3:38 pm

Replaced a ton of wiring as far up as I could... didn't resolve it. Just gave it to the garage this morning and they charged me Β£150 to replace the last part of the wiring!!!

BUT... IT WORKS NOW! I FINALLY HAVE AN MOT!!!

Image

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kis
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LSZ2 Stepping Motors - Headlight aim

Post by kis » Thu Jun 02, 2022 11:41 am

Nice one :thumbsup:

Glad you got it sorted in the end. I guess you did most of the leg work as well, troubleshooting the issue. So you knew there was a problem with the wire somewhere...

Do you know where the break was? Cabin? Engine bay? (Could help others).
My E85 Z4 3.0i SMG

BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
X6 - E71

wolverine2k
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LSZ2 Stepping Motors - Headlight aim

Post by wolverine2k » Thu Jun 02, 2022 11:53 am

kis wrote: ↑Thu Jun 02, 2022 11:41 am Nice one :thumbsup:

Glad you got it sorted in the end. I guess you did most of the leg work as well, troubleshooting the issue. So you knew there was a problem with the wire somewhere...

Do you know where the break was? Cabin? Engine bay? (Could help others).
It was literally 6cm up from where I did the cabling... the mechanic told me that I was sooo close to the break.

It was just by the ABS pump. The mechanic said that there was a lot more cable there than there should have been, apparently someone has rewired the lights before and it was actually the rewiring that they did where a joint had failed. I didn't even see it because it was wrapped up so much in black tape!

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kis
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LSZ2 Stepping Motors - Headlight aim

Post by kis » Thu Jun 02, 2022 11:17 pm

That's interesting. It failed where it was "repaired" previously. But nice you sorted it :thumbsup:
My E85 Z4 3.0i SMG

BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
X6 - E71

wolverine2k
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LSZ2 Stepping Motors - Headlight aim

Post by wolverine2k » Thu Jun 02, 2022 11:23 pm

kis wrote: ↑Thu Jun 02, 2022 11:17 pm That's interesting. It failed where it was "repaired" previously. But nice you sorted it :thumbsup:
I didn't see the failed joint but the garage said it was quite an amatuer job. I reckon someone bought a new wiring harness from the headlight switch and just soldered it to the existing cables in the engine bay. Explains why that switch has clearly been removed before.

But yeah. Over the moon I can finally start using it! πŸ˜„

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