Very helpful - thanks. I actually ended up doing a web search for the part number and found a used one on eBay. It arrives tomorrow, and I'll get to test it If it doesn't work it looks like I now have a Plan C.

 

Nice work gentlemen!

 

Replacement part arrived, and some initial testing suggests that it doesn't leak. Now I need to decide if I'm going to replace it myself or just wait until the timing cover leak fix and get it done at the same time.

 

Update... it turns out that the replacement reservoir also leaks. Naturally I only found out after it had been installed, and after my eBay return window closed.

 

Man, what a BEATING! I am sorry to hear that!

 

Well, it's less annoying than the 'freshly refurbished' wheels I bought that will need another $3K to get right.

 

The Brake reservoir on the DB9 is the same as my Jag S-type. New they are $375.00... Going to buy a couple of used ones as spares, just in case.

 

Just fyi, it looks conceptually similar (but not identical) to the washer fluid reservoir in my '06 DB9, which developed a pretty significant crack up near the neck. I WAS able to successfully epoxy-repair it using J-B Weld, and it has held up since the repair. After epoxying it I sprayed the area with one of those rubber flex-seal sprays, which I'm sure was completely useless but which, nevertheless, made me feel better!

 

Maybe it's time to put that Flex Seal to the test, it says it will stop all leaks

 

I saw this a while ago at West Marine when I had a series of spiderweb cracks in the deck fiberglass of my old boat. I wonder if it would be applicable to this problem?

 

Are there any markings identifying the plastic type on the bottle? It may be possible to plastic weld it back together.

 

When I get the car back I'll take a look at the original leaking reservoir to see if it can be fixed. Thanks for all the tips.

 

I emailed Bolton plastics but they cannot supply directly as AML owns the tooling.

 

Ugh - too bad. When I get my original one back I'll look into options for repairing it.

 

I basically just cleaned the area around the crack with alcohol wipes then "spackled" the crack both outside and inside with J-B Weld original epoxy https://www.jbweld.com/product/j-b-weld-twin-tube. I cut an 8-inch piece of Romex electrical cable and bent it to the shape I needed to reach the cracked area on the inside of the reservoir, then used that as a spatula to apply the epoxy. I made sure it was thoroughly cured, then sprayed the outside with Flex Seal.