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Old 08-27-2003, 02:45 PM
RKreutzer RKreutzer is offline
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Join Date: Sep 2002
Location: Kingsport, TN
Posts: 375
Hi Jeff,

I changed mine on a 87 420, so it should be pretty similar.
I had to remove the air filter.
The wire set I bought comes with different length wires, so you want to compare them first. I then labeled them, so the long ones would go to the back.
I wrote down the order of the wires as I pulled them, as they are routed somewhat irregular (see picture)

The cap comes of after 3 screws and the rotor comes off by simply pulling it up.

I put dielectric grease on the metal connections and put the new parts in.

A spark plug wire puller helped to get into the hard to reach corners.

Hope this helps.

Reinhard Kreutzer
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91 500SL tips for changing cap/rotor/wires?-distributor-before.jpg  
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