IF the block & head are still OK then expect to spend at least $1000 on parts. IF you need pistons & all new valves then the parts price would more than double to at least $2500!!
Labor from almost any good shop would be at least 35-40 hrs at going rate.
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)