Fuel tank
The fuel tank is stamped from steel sheet. It is installed in front of the rear axle.
Fuel tank capacity, l: 52.
Note. Since 1978, a two-section fuel tank with a capacity of 58 liters has been installed on cars.
Fuel pump
On cars with carbureted engines, a mechanical fuel pump is installed with a diaphragm of a different type, driven by a pusher.
Brand: Pierburg.
Type: PE 15615.
Static pressure with closed needle valve, crankshaft speed 4000 rpm, kg/cm2: 0.30.
Pump capacity at crankshaft speed of 4000 rpm, l/h, not less than: 55.
Pusher length, mm: 88.2±0.1.
Pusher outer diameter, mm: 8-0.080-0.102.
Thickness of heat-insulating spacer, mm: 20.
Note. From model year 1981 on the model «316» new fuel pump installed.
Vehicles with fuel injection engines
«318i»
On this model the electric fuel pump of a special design is applied.
Pump brand: Bosch.
Fuel supply pressure, kg/cm2: 4.7.
Pump productivity, l/h: 120.
Brand and type of drain valve: Pierburg PE 20 103.
«320»
This model is equipped with an electric multi-section roller fuel pump.
Brand and type of pump: Bosch 0580 254 992.
Fuel supply pressure, kg/cm2: 5.0.
Pump productivity, l/h: 110.
Rated voltage, V: 12.
Operating voltage, V: 7-15.
Consumed current, A, not more than: 4.7.
Air filter
Air filter - with a replaceable dry filter element.
Brand and type: «315», «316», «318», «320»: Purolator PM 1137, Mann C 3260; «318»»: Putorator AF 3087; «320i»: Pulorator PM 1645.
The frequency of replacing the filter element: every 15 thousand kilometers (or more often when operating in dusty environments).
Carburetor
On engine models «316» (before MY 1980), «318» And «320» a Solex DIDTA 32/32 emulsion-type carburetor is installed, two-chamber, with an automatic mixed-type starting device, which uses an electrically heated bimetallic spring and circulation of heated fluid from the engine cooling system.
Solex DIDTA 32/32 carburetor calibration data
Solenoid shut-off valve
Brand: Pierburg.
Type: «316», «318»: ZK 12 971/45; «320»: ZK 12 971/47,5.
Rated voltage. AT 12.
The maximum allowable voltage, V: 16.5.
Consumed current at a voltage at the terminals of 12 V, A, not more than: 0.13.
Since the start of the series on the engine of the model «315» a Solex IB2 carburetor of emulsion type, single-chamber is installed.
Pierburg Solex IB2 carburetor calibration data
Solenoid shut-off valve
Make and type: Pierburg 7 20580 00.
Rated voltage, V: 12.
From model year 1981 on engine models «316» installed Solex carburetor «Zenith» 2V4 emulsion type, two-chamber, with sequential opening of throttle valves. The carburetor has a system for draining fuel to the fuel tank, a 2nd chamber pneumatic throttle actuator, a piston accelerator pump, a partial load economizer, an automatic starter with an air damper actuator and an auxiliary starting device (to start a warm engine). At forced idle, the forced idle economizer is activated.
Calibration data Solex carburetor «Zenith» 2B4
Fuel injection system
On car models «318i» And «320i» installed mechanical fuel injection system «K-Jetronic» Bosch company.
Thermal valve for reducing the toxicity of exhaust gases (on «320i»)
Brand and type: Texas Instrument CARP or Pierburg PE 20213. Valve opening temperature,°С: 30±3.
Valve closing temperature,°С: 20±3.