Door lock issue - knock on brake and accelerate

[Dave H]

Car: Seat Leon TDI SE (2001)
Problem: knock in door on acceleration and braking.

Has anyone had a knock from the drivers door when accelerating hard or with a quick brake? I have a knock when there is a change in momentum in the car.

It has been doing my head in, I thought it was a bottle under my seat at first, however through trouble shooting, realise that when I drive (safely) with the door open and brake quickly there is no sound...

I have narrowed it down to the door lock and the catch (I guess) Anyone had problems such as this, how can i resolve it? I will need to take to the garage for the repair as have no tools to open the door up to get into the lock.

Has the door dropped?
Is the lock needing replaced?
Is the lock needing adjusted?

Ive only noticed this knock in the last two weeks, and highly frustrating as I still hear it over my cd

Look forward to some troubleshooting advice....

 

[c11rgd]

Definitely sounds like somethings loose. you will see once you openthe door card and check how tight the bolts are etc check the window runners too.

 

[HarryKatinnen]

Door Knock in Leon MK2

I have a Leon TDI Sport now 12 months old which had a similar knock to that you describe. Intrestingly mine started in Summer last year and only happened when the car warmed up after a few miles . Over the Autumn and winter it has disappeared but I am fully expecting it to resurface now Spring is with us.

I will let you know!

 

[SI.C]

Yea I had this problem with our last LEON cupra, I found it to be an easy fix after scratching my head for months. All it was, was dry door joints, dont grease them or use anything like wd40, use something like un used engine oil and coat all moving parts then wipe off excess. Mine was the drivers rear door door hinges after all that.