Talk Morgan Forums Morgan Sports Cars Morgan Three Wheeler & Super 3 Fuel Filter Leak

The fuel filter is made from aluminium and the bracket holding it from steel, it sits just above the rear wheel in all the dirt and (salty) water thrown up from the road. Even with a rear wheel mudguard in place it's an ideal environment for Galvanic Corrosion. If you look at the video and photo attached this is what can happen over a number of years.

This is not my car but another TM'er who uses his car a lot, it's done over 40,000 miles and is a 2013 build car that has been regularly dealer serviced. The handbook states that the fuel filter should be replaced every 15,000 miles, so this should be on it's 3rd filter..... There is no record of when the filter was last replaced, if ever. The first indication the owner got that something was wrong was that the rear wheel lost traction as the tyre got soaked in petrol.

Next time you have the boot tray out, have a check of the condition of the fuel filter and bracket, if it looks corroded get the filter replaced. It is a Mahle KL167 and usually retails for about £40. There are instructions on how to replace it as part of the fuel pump replacement information on the MTWC website, free for anyone to access https://www.mtwc.co.uk/the-5-speeder/ . If it looks OK I would suggest putting some insulation tape or heat shrink between the filter and the bracket stop the electrolytic action. If you get your car dealer serviced then check that the filter has been changed every 15,000 miles, or 3 or 4 years if you don't do a lot of miles, as the problem is related to age rather than mileage. The filter is also the system pressure regulator and keeps the injector pressure at 58 psi, the fire potential for high pressure fuel spraying out doesn't bear thinking about. Check it out while your car is in the garage and the weather is bad.


https://www.dropbox.com/s/ga9v5a44goyv0pn/Fuel%20filter%20leak..mp4?dl=0

Thanks for the good tip. A preemptive strike to insulate/isolate that filter might be a good idea even on a newer car.

I made an isolate around filter
I changed it each year with my diy services.

What did you make for an isolator? Rubber sleeve?

Well worth replacing the filter. I've changed 3 now (on 3 different cars) and have been surprised how much grey sludge came out each time. Keep an eye on eBay - the last filter I bought was from a Landrover dealer and it cost me under £14 including p&p!

The Jaguar Land Rover part number for the Mahle KL167 filter is LWFL000021.

Thanks Planenut, great info.
Not a good advert for dealer servicing!

Best price Never seen
I paid between 30 And 50€
I put caoutchouc isolator around the filter

I get mine from Opie oils with all the other lubrication stuff.

My 2019 came with an isolator as I discovered.

You can see it on the filter peeking out from around the strap.

perfect alignment to pitch sharp objects flung from the rear wheel...…