I've had a disaster :(

E

EchoArtist

Member
So basically i had a very small bump to the front of my car and its broke my power steering pump and i cant get the part number because the sticker is completely worn out on the pump so im left with no option other than to pay between 600-1500 for the part alone so im hoping one of you guys can help me out with a part number ? Its an Audi A2 sport 1.4 petrol number plate is SV52 WHH. if you can help me out with a part number i will be delighted !
 
£600-1500 ??? I've got one for sale for £30 and can post.

Is it only the pump that got damaged? Its quite well protected by the front panel and bumper. Im intrigued to find out how only the pump got damaged?
 
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Yes £600 for reconditioned and £1500 for new ! Only other damage is a small crack on the front bumper. The pump assembly took a couple of dents which has caused a short circuit inside the assembly. I'm not too sure whether or not to buy another second hand one without knowing the part code as I've just bought one that fitted but doesn't work so i need to find out whether it doesn't work because it's the wrong part or if it's just broken.
 
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Ok I'll leave you to think on it, but I can guarantee with my word that the unit I have was fully functioning prior to removal.

Good luck with it all whichever way you go with it.
 
EchoArtist said:
Yes £600 for reconditioned and £1500 for new ! Only other damage is a small crack on the front bumper. The pump assembly took a couple of dents which has caused a short circuit inside the assembly. I'm not too sure whether or not to buy another second hand one without knowing the part code as I've just bought one that fitted but doesn't work so i need to find out whether it doesn't work because it's the wrong part or if it's just broken.
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If the images you show are of your car I cannot understand why you wouldn't jump at the chance of a replacement pump for £30 :confused:

It would be a simple enough task to fit and test at minute cost.

Part No is: 8Z0 423 156 R

Cheers
Jeff
 
because as i stated ive already bought a used one and it didnt work. Its not the trust of buying from a stranger with no warranty thats the issue its the fact that these electric motored pumps are so sensitive that even removing them can cause them to break ! and if you seen the state parcel force delivered the last one in youd understand they are far for careful with fragile packages it looked like they'd used the box as a trampoline haha. if i knew the part Steve is offering fits my model and will 100% id be all over it
 
Thanks Steve im just nervous of whether its the same part number as mine. are you sure its 100% compatible with my model ?
 
have you tried disconnecting the pump connector, then replacing the fuse to ensure that it does not blow again. If it doesn't blow then I'd be fairly sure it was the pump at fault, if it does blow then you ahve a wiring issue, which would explain why the replacement second hand pump 'appears' to be blowing fuses/faulty
 
EchoArtist said:
because as i stated ive already bought a used one and it didnt work
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There are three connectors on the pump: CANbus, power and steering angle sensor.
On older A2s, all three connectors are used.
On newer A2s, the steering angle sensor is not used, instead the steering wheel data is supplied across CANbus.
Older pumps are incapable of receiving data across CANbus, and on not-A2s these older pumps remained in use for longer; often, these pumps are still advertised as fully compatible with the A2 on used parts ads, even though they only work in older A2s with the separate sensor.
Newer pumps can work both ways, either with the separate sensor connected or without.
There is no exterior difference between the newer and older pump.
 
I was aware of the difference being with the steering angle sensor but do you know what year was the change over? Useful info thank you.
 
well since the new pump has been put in (also doesnt work) im getting fault codes about the steering angle sensor so does this indecate that the pump i have is the wrong one ? if i was using a newer one that what i need the steering angle sensor would not work meaning i need an older pump correct ?
 
EchoArtist said:
well since the new pump has been put in (also doesnt work) im getting fault codes about the steering angle sensor so does this indecate that the pump i have is the wrong one ? if i was using a newer one that what i need the steering angle sensor would not work meaning i need an older pump correct ?
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Mine is from a 52 plate car and the part number starts with 8Zo 423 ***** so looks to be a good bet.

ps. in the first photo you've attached there are red arrows highlighting the part. Is this yours? or are the red arrows from the supplier because if they are from the supplier then it looks very much like Bluechip spares and they are very well known to the club.
 
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hmm very tempting i will get back to you later on in the week about buying your part. the picture with the arrows is just from google i circled the part where mine is damaged so the picture of my damaged pump is clear where the dents are.
 
At least in my car, it previously had the older type of pump and the separate sensor.
Then it had a crash with the previous owner, the pump was replaced by a newer one, but the sensor remained plugged in.
When I unplugged the sensor, the pump being the newer type, continued to work perfectly. My VIN is in a very early (2000) range: WAUZZZ8ZZ1N0144XX.

If I understand ETKA correctly, then power steering pump 8Z0 423 156D needs the sensor, 8Z0 423 156H and above do not need the sensor. Also, my guess is that the later pumps do not need the sensor, but will be able to use it if plugged in (though I see no need, as in my understanding, even the very first A2 supplies the required information through CANbus).

In short, I do not think it is possible to buy a newer pump and have it not work. It is possible to buy a too old pump / pump not for A2, and have it not work (well, it will work, but in emergency mode, with lower steering assist and no dependence on vehicle speed/angular speed).
 
Wrongness alert!
According to my current understanding of catalogues, it is actually 8Z0 423 156K and above, i.e. K,M,P,R.
Also, note that J,L,N,Q and S are for the 1.2 TDI.
Anyway, I'm not vouching for anything, just trying to hint.
 
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