# 2012 Mercedes-Benz GL-Class is slow to accelerate **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** gl-class, mercedes-benz\ **Created:** [June 26, 2021, 1:22am UTC](https://community.cartalk.com/t/2012-mercedes-benz-gl-class-is-slow-to-accelerate/177670 "2021-06-26T01:22:09Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![geoffrey](https://avatars.discourse-cdn.com/v4/letter/g/bc8723/32.png) [@geoffrey](https://community.cartalk.com/u/geoffrey)\ **Post date:** [June 26, 2021, 1:22am UTC](https://community.cartalk.com/t/2012-mercedes-benz-gl-class-is-slow-to-accelerate/177670/1 "2021-06-26T01:22:09Z")
It takes a long time to speed up I have the pedal to the floor and it wont go pass forty then it slowly makes it’s way to 75 ---
**Author:** ![weekend-warrior](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/weekend-warrior/32/26122_2.png) [@weekend-warrior](https://community.cartalk.com/u/weekend-warrior)\ **Post date:** [June 26, 2021, 1:47am UTC](https://community.cartalk.com/t/2012-mercedes-benz-gl-class-is-slow-to-accelerate/177670/2 "2021-06-26T01:47:39Z")
we need a bit more info. mileage? is it a diesel or gas engine? is the check engine light on? do you have any codes? have you changed fuel and air filters? have you kept up with the maintenance? ---
**Author:** ![ok4450](https://avatars.discourse-cdn.com/v4/letter/o/e9bcb4/32.png) [@ok4450](https://community.cartalk.com/u/ok4450)\ **Post date:** [June 26, 2021, 4:46pm UTC](https://community.cartalk.com/t/2012-mercedes-benz-gl-class-is-slow-to-accelerate/177670/3 "2021-06-26T16:46:59Z")
You need to provide a lot more information including miles and engine type. Depending upon what the RPMs are doing in all of this… High revs but not much movement could mean a slipping transmission. Slow revving and gutless could mean a worn out engine, dragging or seized turbocharger, waste gate issue, clogged air filter or exhaust, etc. It might help to know whether this problem came on suddenly or over time.