An ALDA post you might want to read!
http://www.peachparts.com/shopforum/showthread.php?t=282510

Boost Gauge
http://www.peachparts.com/shopforum/showthread.php?t=140769

? about ALDA removal in a 617 see pic
http://www.peachparts.com/shopforum/showthread.php?t=173421

ALDA cap - how to remove?
http://www.peachparts.com/shopforum/showthread.php?p=704038

Tweaking ALDA...
http://www.peachparts.com/shopforum/showthread.php?p=1023509

I can't get my alda off! How?!
http://www.peachparts.com/shopforum/showthread.php?t=167048

14.9mpg in my SDL, no, the math is right. and the odometer works too.
http://www.peachparts.com/shopforum/showthread.php?p=790743

performance problems (85 300D turbo)
http://www.peachparts.com/shopforum/showthread.php?p=128721

New to forum, couple of 300sd questions.
http://www.peachparts.com/shopforum/showthread.php?p=733201

Banjo Bolt
http://www.peachparts.com/shopforum/showthread.php?t=102259

ALERT: Over Boost Protection Valve OM617 Turbo
http://www.peachparts.com/shopforum/showthread.php?t=232645

Boost controller.....
http://www.peachparts.com/shopforum/showthread.php?p=451517

OM603 ALDA removal instructions
http://www.peachparts.com/shopforum/showthread.php?p=431887

ALDA removal........OM603
http://www.peachparts.com/shopforum/showthread.php?t=162744

What makes a diesel motor 'peppy'?
http://www.peachparts.com/shopforum/showthread.php?p=462139

86 300SDL Old/New Trick?
http://www.peachparts.com/shopforum/showthread.php?t=141033

ALDA R&R disassembly, cleaning.
http://www.peachparts.com/shopforum/showthread.php?p=777546

ALDA: How can you tell if it's good for sure???
http://www.peachparts.com/shopforum/showthread.php?t=141684