Rough idle and injector cleaner

[Nanu]

Good news an some strange news when I picked up the old girl from the garage.

The diagnostics had showed the faulty injectors being the 3 in bank 1. These were removed and replaced with new. As a result the engine is now running sweet again and all diagnostics show that all is well. So good news half the price I thought. (I know some purists will say you should change all 6 but why when the engine is running perfect)

Now the strange news, the new 3 injectors were the newest, revision 12, £180 each plus VAT. The ones removed that were faulty were also revision 12 and looked identical to the new ones? I was expecting older versions but it would appear revision 12 were fitted as far back as 2014.