STI rear struts

[andrew_boal]

hi just joined,

I have just one of my rear struts knocking on my 05 STI and Subaru UK will only change the one, this seems strange as i have always changed them in pairs in the past. can anyone suggest how i can get them to agree to both..

Andy B

[john_robertson]

How old? what kinda mileage? you could always hit them with the " Not Fit For Purpose " if your car is really new.

John.

[johns]

The amount of wear/tear on a strut after only a few thousand miles is negligible these days. They should be well within spec even after 30 - 40k k miles using modern production techniques and materials. I've had two new rear struts on my car in the past 3 years (knocking), and honestly didn't notice any adverse effect of just having the one replaced. Subaru Uk have replaced probably a few hundred of these individually over the past few years under warranty, all without futher issue.

Think of it another way - if you had 4 new tyres fitted, and after 3,000 miles you got a nail through the sidewall of one of them. Would you replace all 4 or a pair ? I suspect like most people you would simply replace the single tyre, as the wear on the others would be negligible.

The old adage of replacing these in pairs tends to only apply to older vehicles, where there could be a serious change in performance of a shock absorber over say 20k miles. At 60k miles one could develop a leak and need replacement, and it would be suicidal to only replace the one of them. However, on modern cars this is much less of an issue and I don't believe there's any real need for concern.

John

[p1ggm]

the last set i had replaced only lasted 6k, then they started again

[andrew_boal]

Hello again,

Thanks for your help with prob hopefully after replaced will have no further trouble.

Andy B