Looking for some assist / advice / stories about inner coolant troubles with ex AA vehicles. I sold an exAA T6 (150bph 2.Zero TDI) with 102k miles that has an internal coolant trouble. It has been losing coolant. The ERG cooler has been changed and the rate cooler has been tested from the place I bought it from. I have due to the fact that positioned it into VW for a diagnostic. They stress examined the engine which misplaced half of bar of stress overnight. Tested both EGR and rate cooler, which have been both first-rate. They then used a bore scope to look within the engine. Cylinder 2 was observed to have scratched / rating marks and determined proof of dampness in cylinders 3-four, however couldn't make clear what that became and so advocated stripping the pinnacle to investigate. Possibly the cylinder head gasket desires changing, but I'm not certain what the scratches/ rating marks suggest in cylinder 2. I'm guessing it's feasible that if coolant has been leaking into the engine it is able to have washed oil off the pistons and the metal on metal may also have caused it. My query is, if it's miles the gasket that needs replacing. Will I be searching at problems down the line from the scratches in cylinder 2? What are the potential troubles? Or wouldn't it be high-quality? The engine runs quality, nicely a part from the amber engine control mild has simply come on, but that is from low ad blue efficiency (the code that popped up) Has everyone had any enjoy of this?
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