UK-POLOS.NET - THE VW Polo Forum

Hi guys,

I have a Polo 6N2 1.4 SE 60bhp, 2000 X reg in Crayon Red (the best colour ). Been having a few problems with the ABS light coming on at 20mph, and I've narrowed it down to a corroded fuse leg in the box on top of the battery... pull fuse, scrape fuse leg with keys, reinsert fuse, problem goes away for a week or two .

All well and good, until I decide to stop faffing around scraping it, stop being a tight arse , and just buy a new fuse .

Here's the thing... I've got the (less than) helpful owners manual out, and it says I have four fuses in this little fuse box on top of the battery. Correct up until this point. I should have two 30A fuses for the ABS motor relay and ABS main relay, a 20A for cooler 1 level, and a 10A for the compressor.

However, I've got one 30A, one 20A and two 10A fitted in there which straight away I know is not right, and the fuse I pull and scrape to correct the ABS fault is a 20A yellow one .

I also have no idea which fuse relates to which function because the manual doesn't state what order these fuses should be in .

So, could I ask anyone to please post up a quick photo or clear description of what fuse should be fitted in which holder, and also which holder relates to which component?

Cheers for any help you can give.

Best regards,

Dave

I very much doubt getting a new fuse will solve the problem mate, its a fault with your abs, it wouldnt be 'coroding' for no reason at all, and by removing this fuse and inserting it again is only ressetting the ABS fault for a matter of time imho

Could it just be the ABS sensor sticking?

Hi guys, thanks for the answers.

It is 100% definitely down to the power supply the ABS control unit is getting, I've read the fault codes with VAGCOM and I get...

01276 - ABS Hydraulic Pump (V64)
16-10 - Signal Outside Specifications - Intermittent

... which basically means "there's something wrong, I dunno what, and it doesn't happen very often".

To test the theory of whether it's a poor connection or not, I've tried just pulling the fuse and reinserting it without a scrape, and the light comes on straight away. Give it a scrape, it stays off for a couple of weeks. Just one of those Polo things I guess.

I'm also not the first person to get these symptoms, I got the answer to the problem from a bit of googling and it's a common thing with mark 4 Golfs, though not so common with Polos - usually, it's a duff sensor or the wiring under the rear bench gets strained but both of these generate a different fault code on VAGCOM.

Anyway, a new fuse has sorted out the problem so far.

Now, I just have to pull out the dashboard and steering column because my pedal box sheared tonight.

"If only everything in life was as reliable as a Volkswagen"... my arse.