Engine resource depends largely on regular maintenance and the quality of the oils and fuels used, but under equal conditions the average life of a Volvo V70 engine could be longer.
Engine production duration:
11 years
6 years
Engine spread:
Installed on at least 6 other car models, including Audi A6, Audi Q7, Volkswagen Touareg
Installed on at least 4 other car models, including Volvo S80, Volvo V50, Volvo S40, Volvo C30
In general, the longer and for more car models an engine is produced, the better its serviceability and availability of spare parts. Audi A4 might be a better choice in this respect.
Hydraulic tappets:
yes
no
The Audi A4 engine has hydraulic tappets (lifters), providing quieter operation and no need for periodic adjustment, but they are more complex in design and can cause serious engine damage in case of failure.
Dimensions
Length:
4.73 m
4.82 m
Width:
1.84 m
1.86 m
Height:
1.43 m
1.54 m
Audi A4 is smaller. Audi A4 is 10 cm shorter than the Volvo V70, 2 cm narrower, while the height of Audi A4 is 11 cm lower.
Audi A4 has fewer problems. According to annual technical inspection data Volvo V70 has serious deffects in 315 percent more cases than Audi A4, so Audi A4 quality is probably significantly better
