Dotcom1970

got any diagnostic codes? Steering Angle Sensor perhaps?

Yeah, but I didn't know that at the time...

Yup - you should be able to unplug it near the battery end, and insert your resistor into the plug Start car, clear codes, and job done.

Yup, fitted a bypass kit and no problems since. I used one of these BST Bypass The cable crimps are a bit fiddly to install so be careful.

Just sent you an PM

Get a proper leak/pressure test done first

Ahh, good point!

Underneath the car, under passenger seat area. you need to remove the undertrays

Vaico seem to reasonable

fuel filter blocked? fuel pump weak and needs replacing?

I think if you look at the ball pin that's attached to the car, it does have what looks like a normal nut fixing, so you could try applying some force on it using a torque wrench and see if it comes undone....

or it's the actual ABC/DCS module that's faulty, and the error is a false positive. I know the E39 suffered from this (mine certainly did) due to it's location near the exhaust manifold, leading to heatsoak/cooling, whereas on the E61, it's much further forward on the left side of the engine, away from anything hot.

Oops, helps if I read the post fully... Which strut pops off? If it's not the hydraulic one, (the one on the right as you look at the boot) you can buy a replacement, part number 51247201468 (£75 for a genuine one) The struts are different on the non hydraulic models and have a different part number 51247178273 (£57) although the pictures suggest they both have the same Code E61HK on them

Yup, I had a similar issue on my non automatic tail lift. You can buy just the screw in ball socket part and see if that cures it. I did get one, but never got around to fitting it. I think the ball socket wears, and the strut then doesn't grip it properly, hence why it pops off. Part Number: For vehicles with automatic trunk lid mechanism S316A=Yes 05 Ball pin M10 1 41627148797 05 Ball pin M8 1 41628259236

If you already have an active cd changer, then it should just be a straight swap, although some have reported that you do need additional coding... Video here on what you need to do though...https://www.youtube.com/watch?v=2k4jnPnOMG0