Mercedes 190E metal thermostat housing upgrade – here’s how to fit it
The Mercedes 190E along with other Mercs from this era were originally fitted with a plastic thermostat housing. Like a lot of plastic components that are subjected to high temperature for many years, this part is prone to sudden and catastrophic failure.
To avoid getting stranded and potentially frying your engine it’s a damn good idea to fit one of these upgraded all-metal components. The part I am fitting is a direct replacement manufactured by Febi Bilstein, it’s kit no: 34700. I purchased mine from these guys for less than £20 delivered.
Fitting the metal thermostat housing upgrade for the Mercedes 190E
The part uses a banjo fitting where the original does not, but includes all components necessary to make it s straight swap.
Bank on 30-45 mins to make the swap, you’ll not really need much mechanical ability but will require a 10mm and 12mm socket, a screwdriver, a dab of grease and a new sealing ring for your thermostat.