The sound system and interior 2-tone project are finally complete. It took much longer and cost much more than was strictly necessary, but I am really happy with the outcome. I added sound deadening to the doors, boot lid and boot area. The car feels in a class above when it comes to refinement and that general feel of solidity.
I went for JBL GTO components running directly off the headunit and a Golf 7 Dynaudio sub running off an amp. The rear tweeters are mounted in the rear doors, running the OEM 8ohm speakers that came with the car instead of the JBL tweeters. This actually works really nicely to round out the staging.
With the interior quieter, there was a very distinct noise coming from the rear of the car, it almost sounded like a door was ajar. I treated all the window and door rubbers with Liqui Moly "Gummi pfelge" rubber treatment with disappointingly identical noise levels. The rubbers look and feel awesome now though 😎 Brave pill swallowed, the SO was begrudgingly enrolled for driving duties while I, armed with a quizzical face expression, rolled around the boot area like a beached walrus in search of The Noise. The culprit was duly identified as the rear air vents and decisively dealt with by isolating them with closed cell neoprene by creating a "pathway" for the air/sound to travel into the cabin. Serenity awaits.
Except not, as the once distant whistling from the drivers mirror had now taken center stage. It is a distinct whistle and only occurs around 60kph. I brought out the big guns for this one - electrical tape, and proceeded to wrap bits of mirror in the stuff until the whistle went away. It turned out to be the mirror stalk (the thin bit) which luckily is black and is now neatly wrapped in black tape until I have the inspiration or time to come up with a better solution. Serenity awaits...
Work in progress - I didnt take many pictures as most of the work was completed in the dark. Note "tweeter" on the door handle for testing purposes.
Version 1 of the 2-tone doorcards. I first decided on this as I have the black extended leather door handle and black nappa door insert which I wanted to keep. I did not like the look of this at all
Much better...I never liked the "black cube" fake carbon fibre, looks-like-plastic-but-isn't trim
Cheeky BMW Individual door sill trims. I feel the car can now pull it off...
I thought I would need to replace the grey door sills and B-pillar trims with black, but I actually quite like the way it looks and it contributes nicely to my 50 shades of grey interior.
In other news, I replaced the rear shocks (car still had OEM BMW shocks from 2007!) with Bilstein B4 and Meyle HD shock mounts which immediately started rattling! Stark reminder why I always use OE parts

The previous owner supplied the car with new Meyle HD rear shock mounts and engine mounts so I figured I may as well use them, how bad could it be? Pretty bad as it turns out. Does anyone want the engine mounts before I chuck them into their rightful home? I'll be replacing the engine mounts at some point with OE mounts since there is a vibration around 2000rpm.
I have come to the conclusion that the check valve in the oil filter housing is bad; The car has a loud lifter tick on startup and the oil pressure light takes 3 or 4 sec to switch off after startup. I'll import a replacement from Vanos-bmw. Also, the car has resumed its oil drinking habits 🤷♂️
Old BMWs hey, always something else needing attention
