Central locking and windows unusable due to leak

Under the front windscreen there is drain pipes these some times get blocked by leaves and dirt the water backs up and leaks in through vents.

Yes they are on the same fuse. If changing the fuse doesn't fix the problem check the passenger footwell for dampness as water can get into the convenience control unit from a possible leaking pollen filter housing. If there is no dampness, the control unit could still cause this problem and it;s situated under the carpet in the passenger footwell.

HI, if its under the offside front wing, this is where to windscreen fluid bottle is, sounds like you have a leaking pipe or bottle that expands when warm allowing the water out, could of frozen in the bad weather etc causing a small crack.. if it just the end of the pipe that fits on the water pump, snip it off and push it back on, good luck.

Your vaccum line in central locking module has a leak that is as well connected with air bag system.I suggest take it to mechanic and check for leaks on vaccum system.If vaccum lines are not leaking, could be vaccum module.

dealer only

I assume it is a turbo diesel? Then:

Location of the sensor:
- in early cars is in the ECU, with vacuum pipe going from intake maniforld duct to the ECU
- later models on the air intake duct, with wiring going to the ECU.

The fault may often be caused by:

- air leaks in MAP sensor line to the ECU (early ones only) or any of the vacuum control line hoses. This normally due to perished/loose flexi pipes, etc).
- leaks in the air hoses going between turbo/engine/intercooler. Can be spotted by slight oil contamination at the point of leak.

Or it's variable vaine sticking (even intermittently) in the turbo due to contamination, preventing the turbo from performing according to the ECU demand, and hence being 'shut-off' by th ECU

So - check all vacum line for leaks, ensure turbo actuator is free to move, all air hoses are intact and secure, intercooler not leaking.

The humming is the central lock vacuum pump running..You either have a leak in one of the lines, or one of the hoses has popped off

I would look take off the front bumper wrap and see if there is a leak somewhere in the plumbing to the headlight washers, etc. I had this problem.

you have a problem with one of your door locks,get the car code checked,go into central conv and check for a code,let me have the code and i may be able to help you

sounds like you have a heater core thats leaking this is located under dash and if it is leaking it will cause widows to fog up is that a posibility check to see the level of the engine coolant but make shure that engine is cooled off before removing rad cap because its under pressure good luck