New intake manifold gasket between head and manifold.
201 190D 2.5 and 124 1990 to 1993 300D 2.5 5 cylinder Intake Manifold Gasket
$24.50
SKU:
DSL-124INMG 
Product Details
You should consider replacing this gasket when you remove your manifold to replace the glow plugs. Fits all 602 5 cylinder diesel engines from 1986 to 1993.