Focus RS Forum banner

Water leak into the boot

19K views 92 replies 21 participants last post by  Phil Crough  
#1 ·
So this morning I went to put the disc lock in the boot
I have an old blanket I use for kneeling on and to cover the body work if I'm tinkering in the engine bay
I moved the blanket and it was soaking wet, my micro fibre cloths in a box were also soaking as was the box

My heart sank!! I took everything out and the near side boot carpet was soaking as was the boot carpet
Pulled out the floor boot carpet and it just dropped out water

I've now removed the plastic panel and rear quarter side/headlining and discovered where the water has come from, my guesstimate is water is building up around the upper rear light lens self tapping screw plastic grommet which goes into the boot area
Water has gradually dripped down causing the leak
It's never done this before but I had noticed there was a very tiny amount getting in

We've recently had rain and strong wind so that has not helped

Took some photos once I stripped it down to show what I've found


This is the upper self tapping screw location for the near side rear light cluster


The white plastic grommet for the self tapping screw clearly dirt and water has got under it. The screw I removed was rotting (no picture)


The grommet from inside the cabin of the boot area after the trim has been removed


This is behind the plastic trim where the rear seat belt spool is, clearly there is a water trail and staining on the grey sponge


More water trail marks running to the boot floor the side carpet touches the panel and this soaked up water first until no more could be held the rest runs to the boot carpet


This is the locating pin for the pillar trim/to headlining. This photo clearly shows rust on the clip and how the water has run inside this is where it starts and this clip sits directly below the plastic grommet as first mentioned




Rust staining on the trim


Rear seat latch. Rust started due to the damp in the boot

To me this is worrying and I anticipate the off side will be the same.
If this isn't cured well all I can say is these cars will eventually rot from the inside where it can't be seen until it's too late.
Yeah fair play to those who only use theirs on dry hot sunny days and don't see the rain but mines a daily use car!
I'm going to do a bit more tomorrow and fit new grommets
Something as simple as a bit of poorly fitted plastic can cause this, bad design
I think a rubber seal needs to be fitted under the grommets and a good tight fit.

I can't see (at this time) where else water can leak inside

I'll update the thread if I find out anything else.

Just keep an eye on the boot carpets for damp
 

Attachments

#2 · (Edited by Moderator)
Had the exact same problem with my MK 2 ST when I had it, it was so bad that the water soaked up into the backrest of the rear seat which I only noticed when I removed my daughters child seat.

There should be a foam seal under the grommet it's probably degraded over time and failed or become damaged if you've ever removed the clusters.

I got replacements from ford which cured the problem.
 

Attachments

#3 ·
So it's the rear light fittings, am I right? I've dislodged these once in 123,800 miles of driving (to replace dead bulbs) and my rear end is (touch wood) still water-tight. I do appreciate the amount of water that runs down that gulley but it sounds like you've experienced some bad luck rather than an issue, on the basis of my singular experience...
 
#4 ·
Had the exact same problem with my MK 2 ST when I had it, it was so bad that the water soaked up into the backrest of the rear seat which I only noticed when I removed my daughters child seat.

There should be a foam seal under the grommet it's probably degraded over time and failed or become damaged if you've ever removed the clusters.

I got replacements from ford which cured the problem.
Brilliant
I knew there should have been a seal of some sort
What's the part number and cost??