Multiple electronic malfunctions

[Gray Bark]

A recent service scan (after an oil change) showed a fault in the power steering harness, and a visual inspection suggests that rats have gnawed on wiring. The steering is still okay, but here's what's malfunctioning: 1) The dashboard says to check the oil sensor, 2) the calendar date doesn't advance, 3) the seat belt alarm is disabled, 4) the driver's side window convenience opening feature isn't active.

Questions: Can all of the faults be related to the power steering harness? What can be done to deter rodents? (I don't own an enclosed garage.)

For the latter, the dealer advised lavender in stockings, taped around the engine compartment.

 

[rennen-affe]

I'm not sure about the other errors being related or not. Just adding that most wiring (sheathing) is soy based now, and rats love soy. It's also not a vw thing, it's just about every car now.

I've heard that peppermint oil spray helps, but I have zero experience with this.