Where is the battery on an 1987 audi 5000s - 1987 Audi 5000 CS

Bosch distributors have a very slight notch on the edge of the distributor to show #1

http://www.faxonautoliterature.com/1984-1985-Audi-5000S-Bentley-Repair-Shop-Manual-Original-P22011.aspx

Compression pressure for 1986 Audi 5000S 2.2 L is: 14 bar (203 psi). Minimum value is: 10 bar (145 psi).

The Thermostat will be where the bottom radiator hose joins the engine block. Bottom of block near crankshaft pulley.

check this fuse thats located on the upper right corner of your fuse box. worst case cenerio you have injector leakage somewhere. Maybe a bad fuel pump but if your lucky its just that fuel injection fuse

first you should have serviced the unit, service items are fuel filter,spark plugs,air filter,oil filter,engine oil, transmission oil and filter, drive belts, battery check, fuel system flush, diognostic checks, radiator cap replacement, coolant replacement, thermostate replacement, check hoses

either a rear main tranny seal or the pan gasket. needs replacing

Mounted on the starter itself

jack car up, put on jack stand,,remove wheel studs/bolts unbolt studs,,remove old wheel replace with new wheel.

Do you have headlights if you turn them on. Sometimes if a battery is clear dead and you jump it and it will depend on the gauge of wire in the jumpers whether it will start right off or not. Another scenario is the battery you bought is not good or fully charged. If you have a battery with less than 11 volts it probably won't energize the starter.