Anyone replaced clutch in 5 spd manual themselves? - Mercedes Benz SLK Forum

SLK R170 General Discussion SLK 200, SLK 230K, SLK 320, SLK32 AMG

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#1 Old 05-01-2012
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Anyone replaced clutch in 5 spd manual themselves?

I have a '99 with 5 spd manual trans and from what I can tell the clutch pack is reaching the end of its life. The clutch does not seem to be engaging until the very end of the clutch pedal travel and it could be my imagination but I also thought it was slipping under hard acceleration in 2nd and 3rd gears.

Does my diagnosis sound correct? Could it be something simpler like the hydraulic clutch cylinder? Does anybody here have any experience working on the clutch assembly themselves? Can you point me to any posts or info regarding the clutch replacement? I searched the posts and could not find any info on this particular repair issue. I'm pretty mechanically proficient but don't want to bite off more than I can chew if the replacement requires specialized tools and should really be done by the dealer or a MB repair shop. I just hate to pay somebody else to do what I can do myself with a little hard work and patience... Any advice is appreciated!
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#2 Old 05-02-2012
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Originally Posted by Scooter65 View Post
I have a '99 with 5 spd manual trans and from what I can tell the clutch pack is reaching the end of its life. The clutch does not seem to be engaging until the very end of the clutch pedal travel and it could be my imagination but I also thought it was slipping under hard acceleration in 2nd and 3rd gears.

Does my diagnosis sound correct? Could it be something simpler like the hydraulic clutch cylinder? Does anybody here have any experience working on the clutch assembly themselves? Can you point me to any posts or info regarding the clutch replacement? I searched the posts and could not find any info on this particular repair issue. I'm pretty mechanically proficient but don't want to bite off more than I can chew if the replacement requires specialized tools and should really be done by the dealer or a MB repair shop. I just hate to pay somebody else to do what I can do myself with a little hard work and patience... Any advice is appreciated!
The slipping certainly does, but the clutch pedal travel suggests it may be something such as low/contaminated clutch fluid or air in the lines. It may be the clutch master cylinder.

How many miles are on the car? I'd first do what I call the "clutch test". From a stop, put it in third gear. Let out the clutch. if it stalls, your clutch is solid. If it doesnt stall, your clutch is on the brink!

Then if it "passes", Check fluid, bleed clutch.

To test the clutch master cylinder, remove the fcap and seal from the clutch reservoir. Activate the clutch pedal. If the fluid level goes up and down, replace the clutch master cylinder.

If it doesnt, and you already bled the clutch, replace the clutch.
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#3 Old 09-21-2018
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Sorry to be so dumb. What is an fcap?

Thanks. Kevin
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#4 Old 09-21-2018
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