Good afternoon T4 owners,
After few days of intermittent heavy rain in the south, today I noticed that rain water was pooling on the gutter of the bottom runner for the side door. The water depth was nearly half of the gutter not the runner gutter, but the very bottom gutter, where the rubber seal sits). I never noticed this before.
Quick Google search revealed that this is rather common issue:
Water in the bottom sliding door channel ?
Water in lower sliding door track
what causes corrosion on door runner?
According to the above threads, there are drain holes on both ends (towards the passenger seat and rear). So I went to check for the drain holes just now, but there aren't any. I even gently poked around the ends with a metal skewer, but I could not feel any holes:
Gutter at the front end of the runner (behind passender seat):
![Image]()
Outside sill of the front end:
![Image]()
Gutter at the rear end:
![Image]()
Outside sill of the rear end:
![Image]()
The bottom runner was recently been repaired by a local VW bodyshop due to rust hole at the bottom runner and they've tidied up the sill. I'm suspecting that they might have filled the drain holes?
Where are the drain holes mean to be? Inside or outside or the sill?
Many thanks and happy motoring!
After few days of intermittent heavy rain in the south, today I noticed that rain water was pooling on the gutter of the bottom runner for the side door. The water depth was nearly half of the gutter not the runner gutter, but the very bottom gutter, where the rubber seal sits). I never noticed this before.
Quick Google search revealed that this is rather common issue:
Water in the bottom sliding door channel ?
Water in lower sliding door track
what causes corrosion on door runner?
According to the above threads, there are drain holes on both ends (towards the passenger seat and rear). So I went to check for the drain holes just now, but there aren't any. I even gently poked around the ends with a metal skewer, but I could not feel any holes:
Gutter at the front end of the runner (behind passender seat):
Outside sill of the front end:
Gutter at the rear end:
Outside sill of the rear end:
The bottom runner was recently been repaired by a local VW bodyshop due to rust hole at the bottom runner and they've tidied up the sill. I'm suspecting that they might have filled the drain holes?
Where are the drain holes mean to be? Inside or outside or the sill?
Many thanks and happy motoring!
