Car part under warranty, seller won't respond...

[jagman4v8]

Ordered a pair of "Gearzaar" air struts from DK Power for my Mercedes in February , had them fitted and now one has failed after 3 months. Advertised by seller "with 5 year warranty" but after receiving requested order no. will not respond to messages.

[jckl1957]

You are out of time to do anything through Ebay.

If you bought from a UK business seller you need to keep contacting them.

If you have a phone number, ring them, and write to them at their business address reminding them of the warranty and explaining what you expect them to do next.

[arkwebus]

The problem with warranties on items bought on line is that there is no simple way to enforce the warranty. 

I must admit that I would not normally buy safety-critical items on line. Apart from anything else they may be "fake".

You have a few options.  Contact your payment provider and see if - as it's only three months - they will do a chargeback.   Contact Trading Standards for the area in which the seller trades.  Contact the brand holder to see if they would lean on the seller [probably unlikely].

@jagman4v8