# 2003 Mercedes-Benz SLK-Class - Lifter Tap **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [August 28, 2019, 6:39pm UTC](https://community.cartalk.com/t/2003-mercedes-benz-slk-class-lifter-tap/147704 "2019-08-28T18:39:09Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![skubal](https://avatars.discourse-cdn.com/v4/letter/s/47e85d/32.png) [@skubal](https://community.cartalk.com/u/skubal)\ **Post date:** [August 28, 2019, 6:39pm UTC](https://community.cartalk.com/t/2003-mercedes-benz-slk-class-lifter-tap/147704/1 "2019-08-28T18:39:10Z")
when the roof is up I hear a lifter tap between 1000-2500 rpm when the roof is down the sound goes away ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [August 29, 2019, 2:29am UTC](https://community.cartalk.com/t/2003-mercedes-benz-slk-class-lifter-tap/147704/2 "2019-08-29T02:29:49Z")
Do you mean the engine lifter? If so there are probably hydraulic valve clearance compensation elements available that will correct that. Make sure the engine oil is in good condition & the level is correct of course. ---
**Author:** ![Cavell](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cavell/32/43396_2.png) [@Cavell](https://community.cartalk.com/u/Cavell)\ **Post date:** [August 29, 2019, 3:01am UTC](https://community.cartalk.com/t/2003-mercedes-benz-slk-class-lifter-tap/147704/3 "2019-08-29T03:01:31Z")
Could be purge valve. Behind washer bottle. Makes a ticking sound. From MB website. ---
**Author:** ![jtsanders](https://avatars.discourse-cdn.com/v4/letter/j/c2a13f/32.png) [@jtsanders](https://community.cartalk.com/u/jtsanders)\ **Post date:** [August 29, 2019, 7:17pm UTC](https://community.cartalk.com/t/2003-mercedes-benz-slk-class-lifter-tap/147704/4 "2019-08-29T19:17:05Z")
The road noise probably drowns out the ticking when to top is down.