Handbrake fault ,esp fault

[Rocadman]

Hi 

we are having issues with the hand break and esp fault , light adjusting fault , quite a few lights/beeps come on on start up? Have had the battery and alternator checked, and been put on diagnostics ( no real errors came up) after searching it seems it may be down to 2 relays 614 and 395 but I can’t find a part number for these relays without actually physically taking ecu out and pulling relays ( my partners car and she lives 150 miles away , is there anyway of finding the correct part number without taking car apart? 
I have searched on line and can only find relays for cars up to 2008? Nothing for 2009? Anyone know the part numbers? I have phoned Audi and they said they can’t search just for 614 and 395 ? And need part numbers off relays 

anyone help??

thanks in advance 

[Rocadman]

Hi I think I have found them through eBay the 614 and 395 have been replaced with 644 and 646 that’s why I couldn’t find them for the 2009 Audi 

 

Part numbers  644 - 4H0 951 253 / 4H0951253

 

Part numbers for 646    4H0 951 253 C

Hopefully this is right ?

 

[Rocadman]

Hi I think I have found them through eBay the 614 and 395 have been replaced with 644 and 646 that’s why I couldn’t find them for the 2009 Audi 

 

 

Part numbers  644 - 4H0 951 253 / 4H0951253

 

Part numbers for 646    4H0 951 253 C

[FirstG]

I have the same or similar issue just happen. ABS, Parking brake & headlight beam adjustment lights simultaneously came on yesterday with the beeps etc. The threads I've found point to a bad ABS sensor. The only thing that I find odd in comparison to the threads I've read is that parking brake will no longer engage which is annoying.

For me it follows an OS front hub replacement which had to have a new sensor fitted at the same time. My guess is it is related to this. I've ordered an OBDII scanner which reads faults as well as doing engine diagnostics, it's due for delivery tomorrow.

I'll report my findings.

[FirstG]

It's kicked up a code 00290 rear left sensor or NSR I do believe. I'm hoping replacing it will clear it up. I've read dozens of confirmations on so many Audi forums that it cures all 3 warnings but I will admit that even though the handbrake is connected to the same electrical system, I am worried about my handbrake not working at all, except for the red light flashing when I pull the button up that is.

Fingers crossed... I'll order the part now, I should have it delivered tomorrow & I'll fit it tomorrow night & report back.

[FirstG]

Bad news, the sensor is probably original & is fused/corroded in by the aluminium carrier/knuckle & to get it out fully will most likely destroy the magnetic ring.

It going to have to be another new bearing/hub. Albeit it's a rear one this time.

Has anybody done one of these on a front wheel drive? Does it have a big 19mm hex bolt or are they secured some other way?

I ask because none of the online suppliers offer a big 19mm hex bolt to hold the hub together, just the 4 splined bolts that run through from the back .

[FirstG]

Hi to all who read this,

Firstly for clarity, the rear hubs on front wheel drives don't have the big 19mm hex bolt as there is no drive shaft.

To report back on the problem, I've just finished swapping out my N/S rear hub assembly & ABS sensor. Access was good, the spline head bolts after cleaning were relatively easy to remove & the whole job was fairly simple. Surprisingly there was alot of aluminium corrosion between the aluminium hub carrier & old steel hub but with a small amount of hammering from behind it dropped off. A drill attached wire brush made light work of it. A light smearing of ceramic grease & the new hub popped back in easily. The sensor bore hole needed extra sanding to clean the corrosion but all in all a simple job really. 

Just like all the comments made by many it did cure the 3 issues that caused my dash to light up like a Christmas tree.

Traction Control light - gone

Headlight beam adjustment light - gone

EPB issue light - gone

EPB now works as it should

 

 

[Steve Q]

21 minutes ago, FirstG said:

Hi to all who read this,

Firstly for clarity, the rear hubs on front wheel drives don't have the big 19mm hex bolt as there is no drive shaft.

To report back on the problem, I've just finished swapping out my N/S rear hub assembly & ABS sensor. Access was good, the spline head bolts after cleaning were relatively easy to remove & the whole job was fairly simple. Surprisingly there was alot of aluminium corrosion between the aluminium hub carrier & old steel hub but with a small amount of hammering from behind it dropped off. A drill attached wire brush made light work of it. A light smearing of ceramic grease & the new hub popped back in easily. The sensor bore hole needed extra sanding to clean the corrosion but all in all a simple job really. 

Just like all the comments made by many it did cure the 3 issues that caused my dash to light up like a Christmas tree.

Traction Control light - gone

Headlight beam adjustment light - gone

EPB issue light - gone

EPB now works as it should

 

 

Great update, I'm sure it'll help lots of other members so thank you 🙂