So I know that the ignition lock failing is a common issue on S40/V50 and now I am part of the stats as well.
I have a V50 T5 Aut. MY2005 which recently started to not allow me to turn the key all the way to position 0. There is nothing wrong with the shiftlock button and after having a dealer plugging in the VIDA, they also came to the conclusion that the SCU needs replacement.
About a year ago I had the steering lock issue and had the SCL (not SCU) replaced. My auto transmission also failed on me and I had to spend a ridiculous amount of money even if it was a refurbished transmission. Unforeseen faults have so far cost me a truckload of money and now this! Pissed off with the so-called reliability.
Bought the car when it had about 65,000 km (40,000 miles) on the clock and I've only put 50,000 km (31,000 miles) on it over 4 years time - during which it has been pampered and very well taken care of. But yet it continues to puke on me Anyway, enough with the rant.
In any case, my wallet and I are sick and tired of throwing money after numerous problems I have had with the car and so I am trying my best to save some money.
So I would really appreciate if someone could advise me on the following:
- Can I use a second hand SCU from any 2004-2007 S40/V50 (regardless of engine/transmission spec)?
- Can I use a second hand SCU from a 2008 onwards S40/V50 (regardless of engine/transmission spec)? It would be nice if I could at least get the latest key design now that I once again have to break the piggy bank.
- Can I also use the SCU from a C30/C70?
- AFAIK no programming is needed for the SCU, correct?
- I assume I would have no use for my old keys if replacing the SCU? Or can they be re-programmed?
- How many hours should it take to replace the SCU? My Volvo mechanic has never done this before and I'd like to have a time reference so it doesn't become overly labor expensive.
Sorry about the many questions - any insight is much appreciated.