Battery Control Unit 4FO 915 181 A superceded & where to buy

[niall campbell]

Glasgow Audi want £313 + VAt for this and can anyone tell myself if this part has been updated since it went into the car ?

Its a 2006/ 56 Plate 2.0 tdi thanks

[Guest 2]

they'll be quoting you the latest part for your vin number.

[niall campbell]

Ok thanks .................... so its £313 and the part in my car is 4F0 915 181 A , so no idea what Audi are selling me then

Quick look online shows E as well as B at end

Looks like scrappy job for me then

[Guest 2]

just because there is a newer revision doesn't mean its suitable for your cars' spec.

[B5NUT]

I think I've still got my old one for sale from when I upgraded my MMI the part number is 4F0 915 181 A.

[niall campbell]

How Much ?

[niall campbell]

it has the " E " at the SW serial number. I presume that means " Soft Ware " ?

[MarkTM]

How do you know yours has definitely gone kaput?

There's a little known web auction site called Ebay and putting that part number comes up with several £45 - £120

[niall campbell]

Was at garage today and they did a scan due to ESP light coming on after 9 minutes running time. I have had a few faults recently and all point to Battery Regulator .


I have checked ebay and see a couple there. I might try a few scrapyards round here and I can test it without driving away from their yards as its very easy to fit, just have to switch engine on and run for 9 minutes.

[MarkTM]

Hmmm OK, I have several over and under voltage messages related to the regulator, but then I have VCDS, cleared them and they never returned.

In my case it was due to a faulty alternator and not the battery regulator. I don't think I've seen reports of a faulty regulator on here in almost 3yrs.

Have you changed the battery recently, if so was it a like-for-like as it could be a coding issue.

VCDS was the best investment purchase I made for my Audi