Wiring chewed by rat DS3 2018

[Laura1995-12]

Unfortunately I’ve had a rat living in my engine, today my car lost power and struggling to gain speed. I took it for a diagnostics and it shown the diagnosis’s in pic attached so we assumed it was the injector. However I popped the bonnet this evening and it’s clear a rat has been living in my engine and chewed through some wiring! Does anybody have any idea what the wires that have been chewed through are connected to? (I’ve now also put rat bait in my engine and parking it away from where it’s usually parked overnight)

[myglaren]

While I can't help with the wiring, Lidl and probably other similar shops have something called 'Ant-Marten Spray'.
On the continent it seems that Martens are a serious problem, for just such as you, chewing the insulation on wiring. And of course rats, mice and the like do the same.
The anti-Marten spray is supposed to be an effective deterrent. May be worth acquiring some.

[ekjdm14]

Not 100% sure as I'm not up on the modern stuff but that wiring is certainly an issue and if I had to guess it looks like it's going to #4 injector.

Edit- having reviewed the diag photo I'm pretty confident the wiring pictured is in fact for injector #4 & potentially other damage in the same area. It's entirely possible the power steering/ABS issue is coincidental/triggered by something shorting out but most likely IMO it'll be another chewed wire, personally I'd repair the visible damage first & have the codes cleared/re scanned to see where you are.

If the other faults remain (or any other random ones appear) then I'm afraid it's likely just going to come down to thorough inspection to see where the little bastids have eaten next.