Help!!! Automatic Gear Over-revs

[DannyMit88]

Hi, new to this forum!

I have a Mercedes A Class AMG Sport 1.8,

Manual Gear paddles, Auto Economic and Auto Sport gear shift settings,

When in auto, the car occasionally gets to 3rd gear, then instead of shifting up to 4th it will over-rev and then jolt and shift up to 4th.

Any ideas what this could be? I am short on the cash atm so hoping nothing major!

I am due a Service B but cant afford the £900 quotes by Mercedes!

Help!

 

[umblecumbuz]

Reckon this site will be of more help to you:
https://moneyaware.co.uk/2018/06/how-to-budget-your-money/

Serously, someone will come along here soon and offer you suggestions.

 

[Chrishazle]

Sounds like the first thing you need to find is a reputable MB indie near you rather than using the MB main dealer! Post your approximate location and you'll get recommendations from forum members!

 

[CowleyStJames]

Try this, http://www.mercedesmedic.com/reset-mercedes-benz-transmission-procedure-instructions/
Be surprised how many issues this fixes
Try this before you splash any cash anywhere

 

[LostKiwi]

Needs a diagnostic session on Star. It may be a failing electroplate but a Star session will confirm.

 

[malcolm E53 AMG]

Could be the gearbox ECU needs a software upgrade or is faulty and needs replacing, hope it’s the former