In what model year did the 300CE get the 4 valve head? Did the variable valve timing modification occur simultaneously, or with another model year?
Thanks,
Mark

If I remember correctly, 1990. All 104's have an advance mechanism on the intake camshaft.

I may be wrong, but the early 3.0 liter M104 used on the 300CE from 1990-1992 did not have variable valve timing on the intake cam. It also still used CIS-E fuel ignition.

The 1993 300CE was the first coupe to get the 3.2 liter M104 engine.

__________________
Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".

I think all the M104 engines, including the '90-92 CIS-E models, had the dynamically adjustable intake cam timing, not just the '93 and later HFM-SFI management systems. But I've been wrong before.

__________________
Steve

1992 300CE Sportline Sophie
1990 300E Emma - in the family
1979 240D Josephine - sold, but not forgotten
2004 Pacifica AWD

http://web.mac.com/dakota/Mercedes/Home.html

Paul is almost always right.


But, today, I believe Steve is right.

I posted a thread on 300-24 vs 320, apparently, good though 24v 3.0 is compared to the old 12v, the 320 (all 24v) is the one to have if possible - even better torque curve, and less peaky.

__________________
190E's:
2.5-16v 1990 90,000m Astral Silver
2.0E 8v 1986 107,000m Black 2nd owner
http://www.maylane.demon.co.uk/190esmall.jpghttp://www.maylane.demon.co.uk/190esmall2.jpg