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I know it is extremely off topic, but how are the VAG TDI engines compared to the MB CDI engines (around 2009). Reliability and FE wise.
A friend of mine owns a bmw 520 model year 1999 if i recall correctly and he says that the parts are common in many models and years. But that is not so with VAG cars which have different sensors/parts for most model year and subgroup cars. Making it almost impossible to find non oem parts. Which in turn makes it much more expensive to maintain.
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