When my rectifier failed the dealer thought initially that it might be an alternator fault & quoted me 10 hours to to remove the engine to get to it. A new HD rectifier sorted the fault. When my chassis needed changing when cracked I had to pay £695 + VAT for the Centa compensator parts June 2017 & MMC covered the labour. As the engine had to come out anyway its likely the extra work to fit the centa was not that great.
