Thanks for your help! This info will definately give me somewhere to start!
Thanks for the link to the site juribe2. I have no idea what a lot of the site says, (it's all Greek to me!) but the diagrams are great. I will definately bookmark it.
Thanks for the photo las769! This is my first S-Class, so it's a little different than what I've worked with before. The photos really help! Also, thank you for the offer to pm you for help in the future. I will probably take you up on that!

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86 190E 2.3 8v 325,000kms (~203,000MI)
86 560SEL 347,000kms (~217,000MI)
88 560SEL 315,000kms (~197,000MI)
89 190E 2.6 175,000kms (~109,000MI)
90 300SEL 360,000kms (~225,000MI)
91 300E 187,000kms (~117,000MI)