Hi my poor Beryl is really worrying me atm. For a few months now I’ve had weird intermittent faults, it started with bulbs going out, or showing as out, I’d replace them and they’d last a few days before going out again. 

Over winter my fans decided to come on full blast every time I parked up and switched the engine off. Naturally this killed the battery so I bought a new one which it also flattened so had to disconnect the battery every time I parked up. After a week I left the battery connected overnight and this resolved itself 🤷‍♀️.

Sporadically the glow plug light would illuminate on a drive but not often or all the time, but getting more frequent recently. The dpf light came on Tuesday while driving home from work, and while trying to clear that the engine management light came on. 
My husband’s friend offered to reset the light and scan my vag. I thought he was being a pervert but explained he has something called vagcom? On his laptop that could talk to my car. We went for a drive to clear the dpf light on the dual carriageway which seemed to do the trick. I filled up with half a tank of shell and a bottle of diesel redex  (I usually use Tesco’s and he said supermarket fuel ‘can’ cause issues). 

This was fine for two days until yesterday driving to work the glow plug light started flashing again. At traffic lights I turned the engine off and on again which brought the engine light on too 🤦🏻‍♀️. Driving home from work this was joined again by the dpf light, so I lapped the local dual carriageway several times and gave up as it didn’t want to go off this time.

This morning driving to work only the engine light was on. And when I got home from work and went back to go shopping the engine light went out and everything felt great?? 
 

So I don’t know what to do.

 

Also since replacing the battery the passenger rear window operates in reverse on the switches 🤦🏻‍♀️. 
 

I hope that all makes sense! Help!!!xx

51 minutes ago, Megsxx said:

Hi my poor Beryl is really worrying me atm.

 

I'm guessing Beryl is a car 😁

 

With all this seemingly random stuff, I have to suspect electrics, probably an intermittent earth somewhere. Now, probably the best thing would be if someone with a vag scanner (ooh, err, missus!) could check for odd error codes. Now one problem is that you may get stored codes, you may only get codes when the fault is 'live'.

 

If your 'pervert' friend is both willing to put a bit more time in, and you can get the car to him at a time when you've got the Christmas tree lights, you may be able to get a bit further, but there are a couple of problems: You have to be able to get from 'codes' to 'likely faults', and that's not necessarily trivial. Also, you are making quite large assumptions about your friend's willingness to get further involved. 

 

My suspicion is that you'll end up at either a garage or an auto electrician, so you might consider short-circuit the whole 'relying on friends' thing, if you think that's inevitable.

 

One slightly cunning plan might be to try and get it MoT'd. If the lights are on, it will fail, and they'll  give you an opinion on what needs doing, if it doesn't fail, you might want to sell it with 12 month's MoT, but that depends on lots of things.