ABS pump/module part numbers

[Stu-]

I'm going to change my ABS pump this week to try and finally get to the bottom of the ABS issue I have.

My ABS pump has the part number 6Q0 907 379 T. I have been offered a good used pump but the last letter is different (6Q0 907 379 AF). Is there a difference with this pump and will it still work?

 

[James_R]

What are the symptoms and what makes you think there's a fault with the pump?

 

[Stu-]

Abs randomly kicking in at low speed. Speedo randomly drops to 0mph (turning the ignition off and back fixes that).

It's a long standing problem. All started when the coil Spring snapped. Changed the spring and the abs kicking in at low speed started. Changed both front abs sensors which didn't fix it. I've run vcds which just says 'too many communication errors'. So tbh I don't know what else to try, but the mot is fast approaching so I really need to get it sorted.

 

[Badger]

Have you checked VCDS for sensor readings?

 

[Stu-]

Have you checked VCDS for sensor readings?

i tried a while ago, just looking at the screen shots from the log files.

One only says 'excessive comms errors',

The other says '18061 - please check dtc memory of abs controller
P1653 - 35-10 - intermittent'

 

[Badger]

Sounds like a broken wire.

If you're brave, you can connect directly to the ABS Pump if you are willing to connect direct to the K-Line wire on the module itself.

 

[Stu-]

Sounds like a broken wire.

If you're brave, you can connect directly to the ABS Pump if you are willing to connect direct to the K-Line wire on the module itself.

interesting you say about a broken wire, the thought had crossed my mind that one of the wires on the abs wheels sensor may have taken a knock when changing the coil Spring. Could one of these wires do it? Would make sense that it only done it as soon as the spring was changed.

Tbh I wouldn't even know how to connect to the k-line. I'm sure I could find someone to do it if needs be.

 

[Badger]

It would cause a comms error to the sensor but not necessarily to the pump. It's a little complex however the speed is read from the passenger wheel so if this is the same side that the spring snapped on that would be my guess. The wire should receive a constant 5v supply.

 

[Stu-]

It would cause a comms error to the sensor but not necessarily to the pump. It's a little complex however the speed is read from the passenger wheel so if this is the same side that the spring snapped on that would be my guess. The wire should receive a constant 5v supply.

yeah it was the passenger side. I think it might be worth trying to renew the wire before swapping out the pump.

Do you know if you can buy the complete wire with connector plug that runs between the pump and sensor new? Or would it have to be made up and soldered in?

 

[Badger]

Without looking I think it may need a new wire soldering in place. Do check the continuity and voltage first. But as you said if it's intermitent this may not prove anything. Also we the sensors OEM replacements or eBay specials?

 

[Stu-]

Without looking I think it may need a new wire soldering in place. Do check the continuity and voltage first. But as you said if it's intermitent this may not prove anything. Also we the sensors OEM replacements or eBay specials?

eBay specials. I changed both front sensors at the same time to rule it out. Probably a false enconomy

 

[Badger]

Sometimes they aren't the best quality...

Without access to the Pump on VCDS you are pretty much pissing in to the wind I'm afraid. Are you using a free copy of VCDS and a decent cable. Tried it with another code reader?

 

[Stu-]

Sometimes they aren't the best quality...

Without access to the Pump on VCDS you are pretty much pissing in to the wind I'm afraid. Are you using a free copy of VCDS and a decent cable. Tried it with another code reader?

ive found an abs sensor connector/wire repair kit on eBay, I'll give that a go, then if it's still not right, I'll get a proper Bosch sensor and cross my fingers.

I have no idea regards the cable and copy of vcds, the cable and laptop was borrowed from a friend of a work friend, I just took screen shots of the fault log and saved to a usb stick.


I was looking at getting a copy of vag commander to retrieve the instrument pin codes, so I can change my instrument cluster, if this can read fault codes, I could try that.

 

[Badger]

I have all this stuff already, shame you are so far away!

 

[Stu-]

I have all this stuff already, shame you are so far away!

Massive shame, although if I don't get any luck with this, the 8 hour round trip might be worth it lol.

I just read something else on another forum with a similar issue, they mentioned that the wheel bearing was faulty which gave a false reading on the sensor. I suppose another thing to consider is that the hub face may have taken a knock while changing the spring.


Also, another subject, do you know if the instrument clusters from the 2006 fr models are compatible?bive been searching for a proper set of cupra clocks for ages but can't find them for love nor money. But there seems to be a few sets of 2006 fr clocks on eBay, but have different dial faces, but same layout of dials etc

 

[Badger]

If you're swapping sport 160mph clocks for FR/Cupra clocks and diesel for diesel etc... Should plug and play with coding

A dodgy wheel bearing would send a dodgy reading for speed but still should be able to connect to pump for diagnostics etc...

 

[Stu-]

If you're swapping sport 160mph clocks for FR/Cupra clocks and diesel for diesel etc... Should plug and play with coding

A dodgy wheel bearing would send a dodgy reading for speed but still should be able to connect to pump for diagnostics etc...

Cheers for all your help, I'll try renewing the wire and connector first, just a pain in the arse that I can't connect to the module

The plan was to change these

To these

 

[Badger]

They'll swap over fine with coding

 

[Stu-]

They'll swap over fine with coding

Nice one cheers

 

[Stu-]

i had some luck over the weekend with connecting to the abs module. I swapped the instrument cluster over as the old one was faulty and i could then connect.

I recoded the imobiliser and ran a few fault code checks. but then went to start the car and the battery died. So the following morning i changed the battery, but strangely now i cant connect to the abs module with vcds, or even the instrument cluser using vag commander. So i havent been able to reset the odometer to what the old cluster said yet either.


But i pulled these fault codes from it before the battery died. Can anyone point me in the right direction of what to do next?


These were direct froim the ABS module fault code list

01314 - Engine Control Module
000 - -
Freeze Frame:
Fault Status: 01100000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 69
Mileage: 167257 km
Time Indication: 0

18055 - Check Coding of ECUs on Powertrain Data Bus
P1647 - 000 -
Freeze Frame:
Fault Status: 01100000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 69
Mileage: 167257 km
Time Indication: 0

00283 - ABS Wheel Speed Sensor; Front Left (G47)
012 - Electrical Fault in Circuit
Freeze Frame:
Fault Status: 01101100
Fault Priority: 2
Fault Frequency: 1
Reset counter: 69
Mileage: 167257 km
Time Indication: 0

This was from a full scan

1 Fault Found:
16347 - Control Module - EEPROM Error
014 - Defective


The instrument cluster has the ABS, ESP and steering lights illuminated and while driving it gives off a very loud high pitched alarm every minute or so (beeps 3 times), the brake warning light comes on when the alarm sounds.

I am going to change the PAS pump this week, which looks to be the problem with the steering. But i need to get to the bottom of this abs issue.