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Hi all. Have had some noises I fixed but one has kept annoying me. A slight knock noise as I go over speed bumps, from the rear, and when going slow over uneven ground. At first I thought suspension but had it checked. All checked out ok but still there. Im almost convinced its the rear left side air pressure relief flap. Ill get it looked at next service in 8 weeks time. I reckon its weakly mounted and knocks about as when I have my rear hatch open then open then close the rear left passenger door the relief flap makes the exact knock noise I hear, I know they make a noise typically closing doors, but this is the exact same noise, so when driving instead of it sitting quietly I believe it moves. Another reason I think its not working properly or mounted properly (something wrong with it) when I have my drivers side window half down, our drive side is on the right, and floor it the cabin at times fills with exhaust fumes. The window wound half down I believe creates a vaccumm that draws in the exhaust through the not properly sealing air relief flap.
Anyone else get the exhaust fume smell doing that at times like mine?
Anyone else get the exhaust fume smell doing that at times like mine?