GT3 992.1 (MY 2022) Wiring Damage Caused by Rodent - Page 1 - Porsche General - PistonHeads UK

I bought a GT3 992.1 four weeks ago from a Porsche Approved garage. On a TrackDay last week, on my first lap, the car developed an 'Engine Fault' -'Driving Permitted' - 'Visit Workshop' alert. I called out Porsche Assist who reset but it appeared again immediately - day over. The car is now in a Porsche garage under investigation and racking up a bill - initial cause said to be a mouse has chewed wires in the engine compartment somewhere, and if so, warranty may not cover. Remedial action is not yet clear. Has anyone come across before?

Not in a GT3 specifically but its not uncommon, also 100% warranty won't cover it,but your fully comprehensive insurance will.

Is the problem a faulty cat? Sorry, I’ll get my coat. Hope you get it paid for by insurance.

Sorry to hear about your bad news. There is a guy from the New Forest area that had the same thing happen to his 991 GT3. It was out of action for months and the final bill was well into the five figures. He's a Youtuber and did a video on it. You can search for him under "The Car Guys".

Many thanks for the advice re insurance and ‘The Car Guys’ and will definitely check it out. Investigations continue and several areas of damaged wiring discovered plus a blown fuse. I’m just waiting on advice re next steps from the Porsche garage. Difficult to say when damage was caused as I only bought car three weeks before Engine Fault emerged.

That’s pretty rubbish news to hear. I hope that you’re back on the road ASAP. I do spray the peppermint stuff on the wheels, but I’m not sure if it’s a gimmick or not.

Assuming you're in the UK, the consumer protection laws are pretty strong. I'm not giving legal advice so worth looking into for yourself but I believe that you can reject the car for any major faults in the first 30 days. And within the first 6 months it should be the selling dealer's problem to fix unless they can prove that the damage occurred in your ownership.

Thanks, Consumer advice much appreciated. My problem is various areas of wires chewed, blown fuse…Getting confidence that problems have been fixed and won’t become an ongoing saga are not easy. Garage even mentioned today to fully check everything would require engine to come out. Proving when wires were first chewed not easy but as I bought car 3 weeks before perhaps burden of proof on the selling garage?

GT4Ian said: Thanks, Consumer advice much appreciated. My problem is various areas of wires chewed, blown fuse Getting confidence that problems have been fixed and won t become an ongoing saga are not easy. Garage even mentioned today to fully check everything would require engine to come out. Proving when wires were first chewed not easy but as I bought car 3 weeks before perhaps burden of proof on the selling garage? The burden is on them to prove the damage wasn’t there…. That’s the case for 6 months after sale, so 3 weeks should be in your favour.

Thank you. I agree. Let’s see what they come up with.

I had issues with rodents and wires on my 991 GT3 - only became apparent when the axle lift stopped working and got stuck in 'lift' mode. Thankfully the OPC were able to rewire the part that the rat / mouse had got through rather than replace the whole lift mechanism. Stll cost me the best part of £2k all in given time taken to diagnose, rebuild etc. When I got pest control to visit they said it's common with German cars as apparently the wires are coated with some sort of soy based coating, which is better for the environment but turns out is also tasty for rodents... If your car is garage (like mine), make sure you have got weather strips blocking any entry holes and get a few traps down just in case. Hope you get it sorted with minimal fuss and cost - so frustrating.

My garage is very tight / secure. So weird to hear of inbuilt attraction via soy covered wiring. As I’ve only had the car for 3 weeks before this trouble, it is likely this all happened with previous owner. My Macan S has sat outside for 4 years with no issues. Maybe mice like GT cars!

What I want to know is why you GT3 owners have such rodent-infested houses??!

Given the good weather it’s unlikely rodents caused the damage in your short ownership…rodents tend to venture inside in Autumn, so it’s very unlikely given the good weather. Obviously we don’t know where you live, if it’s a built up area you may have quite a few furry friends about too. I’m a grain farmer, so have too much experience of the little feckers. Numbers were huge last winter….

Hose this stuff on the engine bay/components regularly : https://www.liqui-moly.com/en/marten-spray-p001051...

I have a fairly close fitting garage door but I usually catch 4-5 in simple traps during autumn/early winter. Last year i caught 21!!! A few traps and dairy milk works for me.

GT4Ian said: I bought a GT3 992.1 four weeks ago from a Porsche Approved garage. On a TrackDay last week, on my first lap, the car developed an 'Engine Fault' -'Driving Permitted' - 'Visit Workshop' alert. I called out Porsche Assist who reset but it appeared again immediately - day over. The car is now in a Porsche garage under investigation and racking up a bill - initial cause said to be a mouse has chewed wires in the engine compartment somewhere, and if so, warranty may not cover. Remedial action is not yet clear. Has anyone come across before? I feel for you on this. On balance the mice quite probably got stuck in before you bought it. I’d therefore talk to a solicitor, and also think about getting an engineer’s report. Not sure if the latter might help but definitely worth exploring in my view. Either way, very best of luck

Many thanks for all of the guidance and suggestions - very much appreciated. Hopefully I don’t have to go down the legal route and the Porsche garage does the right thing. My concern is that they might try and force a quick fix and not accept responsibility for making things right, so that we avoid ongoing issues in the future. An independent engineers report sounds like a good idea.