Hi all,
Just had our Audi A4 TDi go into limp mode today. Reading around the topic all the symptoms suggest the turbo vanes are sticking causing an overboost that then puts the car into limp mode. The thing is, the two most commonly suggested solutions are to pump Mr Muscle oven cleaner (i.e. NaOH) into your turbo body to remove carbon deposits, being sure not to get it into the wrong place as it starts to dissolve aluminium parts and can lead to a build up of Hydrogen , or use a fuel additive like Forte.
Anybody had any experience of these techniques? Sounds like Mr Muscle, if done right, would be very effective if a bit fiddly, whereas an additive is really simple, perhaps a bit more costly, though to be honest compared to the cost of a new turbo, both are massively cheaper!
Any advice appreciated.
Just had our Audi A4 TDi go into limp mode today. Reading around the topic all the symptoms suggest the turbo vanes are sticking causing an overboost that then puts the car into limp mode. The thing is, the two most commonly suggested solutions are to pump Mr Muscle oven cleaner (i.e. NaOH) into your turbo body to remove carbon deposits, being sure not to get it into the wrong place as it starts to dissolve aluminium parts and can lead to a build up of Hydrogen , or use a fuel additive like Forte.
Anybody had any experience of these techniques? Sounds like Mr Muscle, if done right, would be very effective if a bit fiddly, whereas an additive is really simple, perhaps a bit more costly, though to be honest compared to the cost of a new turbo, both are massively cheaper!
Any advice appreciated.