Hello,
I think I've read just about all the threads (I think!) regarding brake system issues and based on some diagnosis I think I have narrowed down my issues to the ABS/hydraulic unit - and given I have no codes, I think the hydraulic end is creating the issue (issue is that front passenger corner is getting no pressure/fluid). I even PM'd Clemster who was very helpful on this topic. I have a couple quick follow-up questions which I couldn't quite decipher from the threads:
1. Is our ABS/hydraulic unit the same as found on the 7 series e38? Would such a unit be compatible with e39 m5 if coded to my specific car?
2. It seems any new or used unit, even off an e39 M5, would need to be coded to my car. Is "module masters" still the preferred group to send the unit to for coding to my car?
3. Has anyone actually taken apart the hydraulic part of the unit and refurbished it or "cleaned it out"? My brake line is clear and the brake components in front passenger corner all seem to be in good shape. Master cylinder seems to be in good shape. It seems something in the unit itself is not getting through or clogged.
4. Is there a part number that refers to the ABS (electronic portion), a separate part number for the hydraulic unit and then a part number for the combination? It's a little unclear on this page: http://www.realoem.com/bmw/enUS/showparts?id=DE93-USA-09-2001-E39-BMW-M5&diagId=34_1532. Also if you buy bmw part number 34522285051 on getbmwparts.com do you get the whole thing (ABS+hydralic part) or just the ABS module - electronic part? The prices on getbmwparts.com and real oem are very different, wondering if they are referring to two different things. Here is the getbmwparts page - I think item one is the unit... but not sure which end or if it's the whole thing. https://www.getbmwparts.com/parts/2...=&component=&searchText=&startRow=1&maxRow=10.
5. Finally, does anyone know the actual Bosch part number? I tried to look at the part in my car and I can't figure out what the heck the actual bosch part number is.
As you can tell I'm not a technician or car person - so sorry for my rudimentary questions and if I got anything wrong. My apologies if any of these were previously answered, I've tried to search and find the answers to these and didn't come across anything. If curious, 112k 2002 running great with many sensors / solenoids / thermostats replaced over the years.
H
I think I've read just about all the threads (I think!) regarding brake system issues and based on some diagnosis I think I have narrowed down my issues to the ABS/hydraulic unit - and given I have no codes, I think the hydraulic end is creating the issue (issue is that front passenger corner is getting no pressure/fluid). I even PM'd Clemster who was very helpful on this topic. I have a couple quick follow-up questions which I couldn't quite decipher from the threads:
1. Is our ABS/hydraulic unit the same as found on the 7 series e38? Would such a unit be compatible with e39 m5 if coded to my specific car?
2. It seems any new or used unit, even off an e39 M5, would need to be coded to my car. Is "module masters" still the preferred group to send the unit to for coding to my car?
3. Has anyone actually taken apart the hydraulic part of the unit and refurbished it or "cleaned it out"? My brake line is clear and the brake components in front passenger corner all seem to be in good shape. Master cylinder seems to be in good shape. It seems something in the unit itself is not getting through or clogged.
4. Is there a part number that refers to the ABS (electronic portion), a separate part number for the hydraulic unit and then a part number for the combination? It's a little unclear on this page: http://www.realoem.com/bmw/enUS/showparts?id=DE93-USA-09-2001-E39-BMW-M5&diagId=34_1532. Also if you buy bmw part number 34522285051 on getbmwparts.com do you get the whole thing (ABS+hydralic part) or just the ABS module - electronic part? The prices on getbmwparts.com and real oem are very different, wondering if they are referring to two different things. Here is the getbmwparts page - I think item one is the unit... but not sure which end or if it's the whole thing. https://www.getbmwparts.com/parts/2...=&component=&searchText=&startRow=1&maxRow=10.
5. Finally, does anyone know the actual Bosch part number? I tried to look at the part in my car and I can't figure out what the heck the actual bosch part number is.
As you can tell I'm not a technician or car person - so sorry for my rudimentary questions and if I got anything wrong. My apologies if any of these were previously answered, I've tried to search and find the answers to these and didn't come across anything. If curious, 112k 2002 running great with many sensors / solenoids / thermostats replaced over the years.
H