2796 cc
the 328i BMW if it is the M52 engine should be using 5w30 synthetic oil, same as the 2.8 Z3
6.9 Quarts
there is none
The 1995 328i has the 'M52' engine and has a timing chain.
A 1997 BMW 328i uses standard 10w-30 engine oil. This provides a good balance of protection and heat dissipation for the engine.
Yes, the cars are identical in every aspect except that the 1996 has the older style front kidney grilles.
Check your fuses
If it is a U.S. car then it is an OBDII compliant vehicle and the codes can be read with an OBDII scan tool.
In the coolant reservoir in front of the engine.
at the right of the engine just under the air filter
on my 328i I had that problem, and found that the tube that held the oil dipstick was sucking air at it's base where it meets the engine.
inside the engine compartment and on the fire wall