LR3/Disco 3
Water leaks, diagnosis and corrective action: Front passenger compartment
Windscreen
Diagnosis: Ingress of water into A-pillar area or instrument cluster area and rocker panel area.
Ingress of water into A-pillar area or instrument cluster area and rocker panel area.
Cause: Breaks in adhesive beads
Breaks in adhesive beads
Corrective action: The breaks in adhesive beads can be located from inside by using compressed air. The leak
can be identified from outside by the escaping air. The second test method is by means of a water test. The outer
trims must be raised carefully using a plastic wedge. The leak should be located from inside by a second
assistant.
The breaks in adhesive beads can be located from inside by using compressed air. The leak can be
identified from outside by the escaping air.
The second test method is by means of a water test. The outer trims must be raised carefully using a
plastic wedge. The leak should be located from inside by a second assistant.
Side windows
In the case of side windows, the same problems can arise as for a windscreen. The same corrective actions must
therefore be used.
Door seal
Diagnosis: Water ingress in the lower part of the interior door trim or in the rocker panel area.
Water ingress in the lower part of the interior door trim or in the rocker panel area.
Cause: The water shield fitted behind the interior door trim exists to drain off water that has entered the door via
the drainage holes, either downwards or outwards. If the water shield seal is damaged or has been fitted
incorrectly, then water can get into the passenger compartment. In addition to this, the drainage holes can
become clogged with leaves, dirt or excess cavity protection agents. Water gathers in the door and ingresses into
the passenger compartment. Check water shield for damage or correct fitting. If the water shield needs to be re-
bonded, then approved seam sealer should be used. Before the water shield is installed, the drainage holes must
be checked for unhindered flow.
The water shield fitted behind the interior door trim exists to drain off water that has entered the door via
the drainage holes, either downwards or outwards. If the water shield seal is damaged or has been fitted
incorrectly, then water can get into the passenger compartment.
In addition to this, the drainage holes can become clogged with leaves, dirt or excess cavity protection
agents. Water gathers in the door and ingresses into the passenger compartment.
Check water shield for damage or correct fitting.
If the water shield needs to be re-bonded, then approved seam sealer should be used.
Before the water shield is installed, the drainage holes must be checked for unhindered flow.
Door seals
Diagnosis: Ingress of water into the rocker panel area
Ingress of water into the rocker panel area
Cause: Insufficient clamping load between seal and door.
Insufficient clamping load between seal and door.
Corrective action: Check clamping load: The easiest way to check the clamping load of a seal to the respective
bearing surface is by means of a paper strip test. This consists of trapping strips of paper at various points
between the door and the seal, and fully closing the door. If it is possible to pull out the paper with no great
resistance, then the clamping load is too low. Adjust the clamping load: NOTE :
The clamping load is normally adjusted using the striker. When doing so, the edge alignment from the door to the
side panel, or from the front door to the rear door must be taken into account. Another setting method is to realign
the panel flange for the seal mounting. The clamping load is increased by moving the flange towards the door.
NOTE :
4
Engine compartment drainage
When adjusting the clamping load, the profile alignment of the relevant components must always be taken
into consideration.
Do not realign the flange too far in the direction of the door, as this can reduce the bearing surface of the
seal to the door.
