Hello Everyone,

Long time no see!

This spring break, next week for me, I plan to drive my car all week long! I miss it so much...

But... it seems that my car has developed a leak at the neck of the expansion tank.

I am going to replace the cap first, it is aged and is probably a good prevention item to replace.

Now, my problem is... Which cap do I get? a 1.2 bar one or the 1.4 bar one?
My car is a 1989 300E M103

Thank You

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2006 BMW M5 "Heidi" @ 109,000 miles
2005 MBZ C55 AMG "Lorelai" @ 165,000 miles
1991 MBZ 300E "Benzachino II" @ 165,000 miles
1990 MBZ 500SL "Shoshanna" @ 118,000 miles

(On the hunt for a good used M103 engine as of 6/10/23, PM me if you have one to sell!)

Either cap should work!

MB suggests that only the 1.4bar cap for the 1986 & later cars..BUT if you aren't having any problems..then the pressure will never open a 1.2bar cap!

__________________
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