I have a 1987 W 124 300 TD
603 Engine

I have just started using the car again after maybe 4 K miles driven in the last 2 1/2 years and have noticed slight pressure buildup in the overflow tank.

I'm guessing this means that i have a head gasket going bad in some way.

Anyone know haw I can get a ball park figure to R&R the head gasket & probable do a valve job at the same time?

Any show suggestions in Northern Virginia would also be appreciated also.

Thanks for the assist.