1991 Mercedes-Benz 190E Questions

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Can't get the heat to change to defrost or floor
It starts and runs when cold, but after it gets warm, it does not start.
Problem began on Saturday, after battery had been disconnected and reconnected to a new alternator.

Left the car overnight, thought the noise had stopped; by morning battery was dead as a dodo.

Recharged battery, moved car; stopped, noise starts again; when battery put on charge noise stops.

Help please, anybody.
My car dies and when the abs light comes on and I have to let it sit awhile before it will start again plz help.
When I shift from first to second it makes a clucking sound and sometimes when I am on the freeway sometimes I loose power also when I try to shift into reverse it just free revs
Changed the plugs and wires due to skip this fixed it but VERY hard too start cold. This problem happens all the time
seems worse when cold
I am having trouble getting the bolt out and not sure what kind of threads I am working with. Don't want to damage the bolt or the crank shaft. Advise left or right? Thank you
Bought car a few months ago. Ran o.k. and passsed inspection....has 162,000 miles. Noticed a small coolant leak that was dripping from the drivers side corner of the radiator. It was apparrent the source was in another location after experiening a much larger leak in the area under the waterpump. I refilled the radiator 3 times and still couldn't pinpoint the exact location of the leak. The car did overheat, and I am praying that the head gasket will hold out. A couple of people that know more about repairs than I do, both agreed that the w/p is the culprit if you cannot locate the source of the leak, b/c the fluid will be coming from the weep hole. When removing the top hose, the PLASTIC radiator nipple broke off in the hose so I was going to put in new pump, radiator, and all hoses while I am at it. Another mechanic I talked to said it might be a freeze plug that let go. That would make sense, if there is a plug behind the w/p on the block, cause that's the general area where the coolant appeared to coming from. I can only see 1 plug on the intake side of the block, as everything else is blocked from view by manifold etc. Any ideas or thoughts would be appreciated. I was having a hard time getting the w/p bolts removed and heard that there are special modified tools required to do this job. I purchased some wobble ratchet extensions, hoping that will get me the proper angle to remove the bolts. This is a great car and I miss driving her already. Thanks.
Car is not starting, may be the timing belt but need a diagram to locate it.
i need a diagram/directions on how to put my serpentine belt on my 1991 Mercedes 190E 2.6
I'm changing the rear disc brake pads on my 1991 Mercedes 190e. This is my first time. Does anyone have a site with photos showing the steps. On the inside of the disc there are 4 bolts, 2 smaller bolts near the edge and 2 larger bolts half way down the disc. I need to know which to unbolt and sequence.

Thanks for any suggestions.
Any recommendations on what are the best tire for my 190E Mercedes Benz.
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