My 71 reg Volvo XC40 (22,600 mls) has just had its 3 year service at a main dealer and was due its first MoT. I was told on collection that it needs one new rear shock absorber and won’t pass the MoT without it being done. The quoted cost seems quite high and I wondered if this could be covered by the 3 year warranty (one week left of it) or will it be classed as wear and tear. If it is wear and tear wouldn’t the other three need replacing too?