Your car doesn't have either of the ITEMs that you are asking about.
The car has a BASE module instead of overvoltage relay.
A warm starting problem could be caused by bad crankshaft sensor OR coil.
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)