E46 series BMW 3

1 Area of cross-section section of a starting cable for the petrol engine in volume to 2.5 l should be not less than 16 ^mm2 (diameter about 5 mm). For the diesel engine or the petrol engine in volume more than 2.5 l the section of cables should be not less than 25 ^mm2. The car with the discharged battery here should be defining. The section of cables is specified, as a rule, on packing. It is recommended to buy a starting cable with the isolated cable clips and section ^{25 mm2} as it is suitable and for engines with smaller volume of cylinders.
2 At both storage batteries tension should make 12 Century.
3 Discharged battery can already freeze at temperature – 10°С. Before accession of a starting cable it is necessary, that the frozen battery surely was defrozen.
4 Discharged battery should be attached according to rules to an onboard network.
5 Check electrolit level in discharged batteries. If necessary add the distilled water.
6 Dissolve cars from each other so that between them there was no metal contact. Otherwise at connection of positive poles the electric current can proceed.
7 On both cars tighten parking brakes. Manual a check point establish in neutral situation, automatic in the provision of a parking of "R".
8 Switch off everything consumers of a current.
9 Engine of the feeding car in the course of a charge surely should work at single turns. Thus, the generator is protected from the damages, able to arise owing to tension peaks at the moment of start.
10 Attach a starting cable in the following sequence:

10a. Attach a red cable to the positive plug (+) in an impellent compartment of the fed car. Previously cast away a cover-1-. If the fed car is not BMW of the 3rd series, attach a cable to a positive pole (+) the storage battery.

10b. Other end of a red cable attach to the positive plug-1-of the feeding car.
10c. Attach a black cable to a weight point (-)-2-on an amortization rack of the feeding car. If the feeding car is not BMW of the 3rd series, attach a cable to a negative pole (-) batteries.
10d. Other end of a black cable attach to a weight point on the right amortization rack of the fed car. If the fed car is not BMW of the 3rd series, attach a cable to a reliable point of weight.

Do not attach to a negative pole (-) the discharged battery. The metal part connected by bolts to the block of cylinders best of all for this purpose approaches. Under adverse circumstances accession of a cable to a negative pole of the discharged battery can cause battery explosion owing to an iskroobrazovaniye and allocation of detonating gas. Plugs of a starting cable at the attached cables should not contact with each other and respectively positive plugs should not concern weight points (a body or a frame) – danger of short circuit!

11 Start the engine of the fed car (the discharged battery) on single turns. At start continuously it is necessary to press no more than 10 a starter with as owing to the increased consumption of a current clips of poles and a cable heat up. Therefore between separate starts it is necessary to do breaks for cooling by duration about 1/2 minutes.
12 At emergence of difficulties with start needlessly it is not necessary to include a starter long. During start fuel is continuously injected. Find out a cause of defect and eliminate it.
13 After successful start both cars should be connected by a cable during 3 mines of work.
14 For an exception of peaks of tension at separation at the car with the discharged battery turn on the fan and heating of back glass. Do not include a driving beam. Filament lamps at the increased tension fuse.
15 After completion of start from the extraneous car disconnect cables in sequence, return to accession. At first disconnect a black cable (-) at the fed car, then disconnect feeding car. A black cable disconnect at first at the feeding car and then at the fed.