BMW Seat Trim

[Precisionmike]

Hello All,
I am new to this forum, have been a car enthusiast for over 25 years.
I recently picked up a 1995 BMW 540i that I am bringing back to it original condition. I have started with the interior and ran into a snag.
The interior is very light grey. There is plastic trim around the base of each front seat. The plastic has began to yellow. I tried several solvents (such as simple green) but nothing is working. I have the heat gun trick, have not tried yet.
Any ideas? TIA, Mike

[AGOatemywallet]

Pictures Please

[Precisionmike]

Here are a couple of pics of the door map pockets which also have the issue. Here you can see the difference between the yellowing and the original color

[Eldorado2k]

Try a magic eraser with a bit of APC.

[GSKR]

Seen it a lot on bmw it's just aging,try the heat gun and let's us know the results .

[Precisionmike]

Thanks for the advice. I will give the ideas a try and report back.