Parktronic system fault

[Bladerunner2109]

Hello there

I have the dreaded 4 red lights displayed on my dash when I put the car into reverse. I checked the two fuses to the system and they looked fine......I went a bought a Icarsoft mb1 diagnostic tool and ran the parktronic test but it came back with no faults..........now I'm at a loss!

I've been through all existing posts but can't find anything to advance my diagnosis.........please help......all ideas welcome

 

[Riva811]

Perhaps the sensor is faulty?
Whats your main battery voltage after sitting switched off for 8-12 hours?

 

[Bladerunner2109]

Perhaps the sensor is faulty?
Whats your main battery voltage after sitting switched off for 8-12 hours?

I will have to check that tomorrow......the battery seems strong but will check it anyway. It just seems strange that the diagnostic came back clear......doesn't make sense

 

[whitenemesis]

Not all diagnostic tools will dig deep enough to diagnose the many MB sub-systems.

 

[Bladerunner2109]

Not all diagnostic tools will dig deep enough to diagnose the many MB sub-systems.

Im going to contact Icarsoft tomorrow to find out what it tests and doesn't test.....that in itself could tell me something.........trying to avoid paying out for a star test but get the feeling I may have to

 

[Duffy3074]

park near to a wall, look at the live readings for the sensors in the MB1 and spot the odd man out.
There's your faulty sensor

 

[Ravs88]

I had this, car just needed a good wash. Sometimes salt, mud etc can effect this. Try cleaning them first.

 

[Bladerunner2109]

I had this, car just needed a good wash. Sometimes salt, mud etc can effect this. Try cleaning them first.

Im a detailer........my car is very clean........I did get that suggested......works very well on BMW sensors apparently

 

[Bladerunner2109]

park near to a wall, look at the live readings for the sensors in the MB1 and spot the odd man out.
There's your faulty sensor

Ah.......there's an idea. I didn't think to try live data(didn't realise I could). Good suggest friend......thank you all......I have quite a few thing to try tomorrow...... BRAVO MBCLUB

 

[ChrisEdu]

Thread resurrection, as I'm currently experiencing the same issue.

Initially my iCarsoft diagnosed the rear inner left sensor, so I swapped it out for a new Bosch sensor.

Started the car, put in D and front sensors seemed to be fine. Put in to R and a big fat raspberry! Of course, then the fronts would also no longer play.

Ran a diagnostic again, but no faults found! Eh?

Before I admit defeat and send it off to the indie, any ideas or suggestions?

 

[ChrisEdu]

Just wondering, the sensor I removed has a part # 0263024746 the replacement, whilst looking identical and supposedly the correct part, has a part # 0263009637.
Could this be the issue? Might it be purely down to something as simple as the part number?

 

[ChrisEdu]

BTW, I have also cleaned the sensors, just incase that was the problem.
Still no further forward and feeling really puzzled.

 

[Number1]

Hi, did you manage to sort the problem as I have similar issue . Put reverse , beeps all amber lights and two red either side of centre, started with one side first but now both sides. Interested to hear how you fixed it.....