10 Front Coil Spring Color Codes for W211's - Mercedes-Benz Forum
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post #1 of 2 (permalink) Old 06-17-2019, 09:50 AM Thread Starter
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10 Front Coil Spring Color Codes for W211's

I learned just last week that there are various color codes for coil springs on Mercedes. I saw one thread on this subject under W124's, so apparently this is common on a Mercedes. Since I'm putting all new shocks on and my car has over 325K miles, I figured it's time to replace the front springs as well. (The rear springs have already been replaced several times, so I'm not replacing them again until they break again. Another subject.) I contacted the dealer about new front springs before I looked for aftermarket and was educated about the color codes.

So apparently W211's have a total of 10 color codes of just the front springs. The CDI has just 2 color codes; either blue with 2 white stripes, or blue with 3 white stripes. The VIN doesn't call out the exact spring but just narrows it down, and it requires a physical inspection, or so the parts guy told me. Inspecting mine, I have one blue with two white. I was told this has to do with a combination of the weight of the options on the car and ride height. I'm sure the CDI has a heavier front end than a gas version. Maybe the V8 version would rival the front end weight, but that would only be an a sport ride (lowered) version. They told me that just adding an ungraded stereo system can cause them to have to change out the springs on a car. Seemed strange that Mercedes could not tell me the right spring from looking up the VIN.

So I'm guessing that putting aftermarket springs on a W211 is a crap shoot to get the ride height back to where it was originally. I've not seen 10 different versions of aftermarket front coil springs for W211's; just 2; a lowered and a normal ride height. So genuine MB springs it is. I didn't know that spring choices on a MB could be so complex for a single body style.
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post #2 of 2 (permalink) Old 06-17-2019, 10:22 AM
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It's a MB/German thing. Your average Joe behind the steering wheel isn't going to notice any difference.

Think about it...........what happens when the number of passenger in your car varies from 0 to 4. At 150 pounds each, that 0 to 600 pounds difference! How about an empty gas tank vs a full one.
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