Review on For Audi R8 Coolant And Oil Expansion Tank Cap Lid Retrofit For VW Scirocco Passat Cc Golf GTI Golf R Tigan 420121321 /420103485B (Oil Cap) by Tony Miller

The coolant cap will NOT do its job under heavy loads. On a long, steep climb (I-5, Southbound, Grapevine), ALL the coolant drained out of the cap and I was stuck on the side of the road. but never as tight as the original. Like the other one here I've been having some trouble with the EPC backlight since I put these caps on my car. I cannot recommend them for any situation.