i noticed on the exhaust manifold,there is a flat blank,that has not been punched out,this is where the egr is supposd to be located,its as if the car was manufactured without one,am i overlooking it? does the car not come equipped with an egr,or did they do something different for 1989?

I believe that 1986 to 1989 MBZs of this type did not come with EGR systems. I too have an area on the exhaust manifold that would be where the EGR would sit.

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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!)

Yes, from what I know the M103s did not get EGR until the 1990 model year.

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1989 300CE

Yes, it's true, no EGRs till 90.
Also, if your CEs were 1990s instead of 89s, they would have M104s instead of M103s.
Regards, Eric

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89 300E "Benzer1" 15.924 Uncorrected
93 400E "Benzer3" 14.200 U.C.
95 E420 "Benzer4"
92 300E "Benzer5" 16.299 U.C. Future turbo CNG
87 300D "Benzer7"
87 300D "Benzer8"
87 300D "Benzer9"
87 300D/70 AMC Javelin "Sidewinder-Benzer"
87 300TD "Benzer11"
06 E320 CDI "Benzer12"
05 E320 CDI "Benzer12A"
71 AMC Javelin AMX 401 "Sidewinder"
74 AMC Hornet 401 "C.K.10" 13.63 U.C.
74 Bricklin SV1 "Presto" AMC 360 pwrd.

wierd,lol,thanks guys ill drink my iced latte to that one,cheers