no_leaks_small.jpg (16556 bytes) Leaking lamp gaskets

Rear lamp gasket replacement

water_in_boot.JPG (22937 bytes) Arrgh! Nightmare! Water saturating the boot carpet - yuck!

Time to track down the potential source of water entry.

In this case the source was found to be via the rear lamp assembly gasket.

Replacement of the rear light cluster gasket is, happily, very simple. You will need to order new replacement gaskets, and it is important to note that there are two types: and early, thin type and a later thicker type. I used the later version in my 95/96 MG to good effect ("Gasket-Lamp Ass" part # XFH100440 x2 @ 6.62 ex VAT each).


1. Release the bulb holder from the lamp assembly  by squeezing together the two plastic retainer tabs, as demonstrated opposite. remove_bulb_panel.JPG (37434 bytes)
2. Then, using an 8 mm ring spanner or socket, remove the three retaining nuts that hold the lens assembly to the car. The unit can now be gently pulled away. Take this opportunity to check that there are no potential entry points for water adjacent to the rear lamp aperature where water could enter - if present use automotive silicone sealant to block these ports of entry. location_nuts.JPG (22575 bytes)
3. The old seal can now be peeled off the back of the lens unit and the new one put in place. See how the original gasket compares to the newer version! new_v_old_seal.JPG (15444 bytes)
4. Make sure that you align the new rubber seal carefully, particularly along the bottom where you need to push the locating tabs on the body of the lens through the slots in the gasket new_seal.JPG (15009 bytes)
5. Next, check the lens aperature and clean out any debris (as seen arrowed here). The whole seal and lens unit can now be replaced back onto the car and the securing nuts tightened. lamp_apperature.JPG (18676 bytes)
Be careful while doing this that you do not over tighten the nuts and cause damage to the lens unit. Reconnect the bulb board to the lens unit and listen for the click as the clips fasten. Finally check that all of the lights work.

Now you can check to see whether you have a good water tight seal by either waiting for some rain, or by hosing the car down to emulate a heavy shower. Hopefully, job done!