Hello all,
I'm in desperate (and frustrated) need of help.
I have a 58 plate (2009) Skoda Superb 2.0 TDi Elegance which I've owned for 7 years and until recently has never given me a single spot of bother - I love it.
However, I recently discovered an intermittent fault with the fans that was completely draining the battery. The fans are coming on full power at completely random times when the car is switched off (even when it is completely cold and hasn't been driven for a day or two - so it's not the DPF regen ). The keys are out of the ignition, the car is locked up and randomly the fans will come on. It might be straight after turning the engine off, or it can be hours (even days) after I've turned the car off. It seems completely random.
It's been into my trusty local garage (not main dealer) a couple of times and my mechanic is totally stumped - no fault codes etc. He's tried a couple of things when it has done it, but no luck in diagnosing it. I even took it to a German car specialist, he had it in for three days but it didn't do it once (cost me £100 for the privilege of him having my car for three days and scanning it). Got it home and a day or so later I heard the ominous sound of the fans firing up from my driveway. I can't really afford the time without the car leaving it with the German car specialist for a few days a week (or to keep chucking away £100 each time if it doesn't do it), so I'm turning to you guys in the hope that someone might be able to help me?!
My current situation means that I have to pull the fuse that controls the fans every time I park the car, so that I can be sure I won't have a flat battery when I return. As I'm sure you can appreciate this is incredibly annoying when you're doing school runs, in and out of the office, or the supermarket etc. It's also already cost me one snapped bonnet release lever!
My mechanic told me he thinks the fan control unit is built into the main fan (there is no fan relay) and so to replace that you need to replace the whole fan, which is somewhere around £400. That's a lot to fork out in the hope that it might solve the problem, without any guarantees, so I'd rather try and be certain that whatever we do (and whatever that costs) is going to solve the issue.
Willing to listen to any suggestions, ideas etc. that might solve this issue.
Thanks all - I'd really appreciate any ideas, thoughts, advice etc. on how I might be able to solve this problem.