hi there,my first post and looking for advice please!my wife bought the above car 2 weeks ago but noticed when starting it up it blows out an awful amount of white smoke.i didn't believe her until I saw it myself,it really is bad.she has got back in touch with the garage she bought it from and the owner got in touch with the previous owner (a mate).he has got back to my wife saying that,now I don't know if this makes sense as I/we haven't a clue about cars!,the previous had an issue with the dpf/dpg? and instead of fixing the problem he has bypassed the problem dpf/dpg? electronically.and once he did this it started smoking.the garage has offered to give our money back as it will cost £800 to fix,does this make sense to anyone? the milage is 93000.thanks,simon

 

Take it back and RUN!

White smoke during start up can be due to the following causes:
Burnt glow plugs
Incorrect Ignition timing
Compression problems - If a cylinder has significantly lower compression pressure than others. Minimum compression pressure should be 275 psi at cranking speed.
Blown Head Gasket
Poorly sealed piston rings
Leaky valves
Cracked Head
Cracked Block
Injector is stuck or not working
Clogged air filter
Defective waste gate such as an actuator, vacuum line etc.
Poor fuel quality
Low coolant temperature
The major cause of white smoke is inadequate heat. The low temperature at which fuel burns within the engine causes white smoke emissions and can be corrected easily by installing a low cost heating system. Our Automatic Engine heating system which along with standard pre-heating has optional simultaneous and post heating option and will eliminate white smoke emissions during startup.

above from: Diesel white smoke emissions during startup

Diesels are not meant for short trips either.