Drowned yaw sensors

The damaged chip on both boards has 385.1 on it. Hard to tell if the preceeding number is a 9 because of the burn mark.

Both pcbs are almost identical apart from 2 areas.

Confidence is high imo.

P.S a mitre saw looks like the easiest way to get the casing apart :rofl:
 
I'd try removing that chip in the corner:

Screenshot_20250605_155507_Chrome.jpg

Swap over the connector or pcb if connector is part of the casing and try it in a Z4.

I have a breaker facelift 2 litre if you want me to try it :thumbsup:
 
Cheers Rob

Yeah the dremel did its work

That chip in the top left is there on the back of the other board

But yeah I’ll swap the main burnt chip over see what happens
 
bigwinn said:
Cheers Rob

Yeah the dremel did its work

That chip in the top left is there on the back of the other board

But yeah I’ll swap the main burnt chip over see what happens

Good luck :thumbsup:

There is obviously a reason why BMW had a different connector put on the yaw sensors but those boards look so similar that I bet it would work.

Could be as simple as BMW had already used the connector somewhere else on the e90 so needed to use a different one on the yaw. BMW don't seem to like using the same connectors more than once.
 
Well that’s done

Donor chip transplanted

Sensor back together

Now I just need a test car to try it in

If anyone has a drowned sensor let me know I’ll send this one for you to try!!

IMG_7200.jpeg
 
Well done Stuart :thumbsup:

Happy to test it in my breaker for you if you want?

Can either post it back to you, post it forward to buyer or if you're coming this way on the 21st June you can collect it then :thumbsup:
 
bigwinn said:
Great idea Rob
I’ll text you and get it over to you!
[ref]Usel[/ref], you may find you need to drive the car a bit to make sure the lights don't come on. I had one before that would reset for a couple of miles. I know you have the private land access, just making sure the car is still driveable?
 
Usel said:
Yes the car is still driveable, I'll try and put a few miles on it :thumbsup:
Given how the sensor works, it may just need a few sharp turns and a bit of heavy braking. Under all that electrickery it's a fairly simple accelerometer.
 
enuff_zed said:
Usel said:
Received in the post today, will test it tomorrow night :thumbsup:
Norfolk Ambulance Service on standby :thumbsup:

I'll make sure I'm nowhere near the airbags when I turn on the ignition :rofl:

Did anyone see the Mat Armstrong video when he had the Yaw loose and he turned it upside down :rofl:
 
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