Mercedes sprinter clutch

It is possible that the throw out fingers have gone behind the throw out bearing housing causing the lever to be in the wrong position. If you can get an inspection plate off under the fly wheel you may see if this is the case . If not you may have to pull the box again

Clean mass air flow sensor pins, this should fix it.

That does not seem quite right. The slave cylinder "piston," while it extends to declutch with pedal compression, it would return under spring pressure for clutch application as pedal is released...essentially reversing fluid flow and recharging the foot cylinder. Slave cylinder leakage during clutching should "show" as sluggish/irregular clutching response noticable by irregular/difficult/clashing shifts..that and probable noticeable leakage from the bell housing in addition to too-high or too-low fluid level in the reserve bottle on the firewall. As for location of slave cylinder, the significant advantage of hydraulic over cable-&-release-bearing clutch actuation is that there is no use of leverage with hydraulic but, instead, centralized force applied to the clutch plate by a slave cylinder though the center of which runs the crank shaft on its way to the gear box. Please re-post with more complete details as to driveablity/shiftability factors and fluid checks, top-off frequencies, and the like. Essentially, the only way to fault isolate a slave cylinder is by elimination of all other faults and leak sources; or by tear down and inspection. If the latter, you should consider complete clutch rebuild and pilot bearing for all the trouble you will inccur, depending on existing clutch age and wear and tear factors (such as driver skill level). Sorry could not offer a more definitive answer at this point.

Top up your fluid, if it works look for a leak on the cylinder, master and slave

Now you have gone off and confused me. Is it RELEASING late or is it ENGAGING late? Releasing at the top of the pedal is releasing early and engaging late. When you replaced your clutch, did you resurface or replace the flywheel? Makes a BIG difference. I usually recommend master cylinder replacement at the same time the clutch, pressure plate, nflywheel, throwout bearing, pilot bushing or bearing and slave cylinder is replaced. That is the only way to guarantee a trouble-free clutch relacement. The original clutches usually last over 100.000 miles (depending on how it is driven) The replacement clutches will not last nearly that long if a COMPLETE job is not done.

I get undersold on my clutch jobs all the time. But I also get many of those customers back when the other shops do a poor job (clutch, pressure plate, and maybe, a slave cylinder) and the car needs a clutch again in just a few months. It has been a LONG time since I have had one of my clutch jobs come back to haunt me. Sometimes you get just what you are willing to pay for.

first check to see if you have any fluid in the clutch master cylinder which is mounted by the firewall on l/h side of car. if fluid is inthere, follow the line/hose to the transmission. this line/hose goes to slave cylinder mounted somewhat on the front/top of trans with 2 bolts. that is the slave. have someone push the clutch as you are watching the slave cylinder for operation. it should move with clutch beeing pressed. if it doesnt move than you have a hydraulic issue/leaking master cylinder. if it moved nicely, tha i would be looking at the clutch.

check the slave cylinder... also unhook the line going to the slave and see if the petal gets hard? if it don;t then change the clutch master cylinder

Get the clutch slave cylinder and master cylinder looked at.One of the 2 has failed.If the pedal goes to the floor or is very loose,this is very likely the cause.Not an expensive fix.Hope this helps

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The clutch slave cylinder is located on the left side of the transmission, but i believe that the slave cylinder may come with the master cylinder and lines already attached

I’m happy to assist further over the phone at https://www.6ya.com/expert/jonathan_3a3c556b4b17d1d2