BMW 3 series E46

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 мм² (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 мм². 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 мм² as it approaches and for engines with smaller volume of cylinders.
2 At both storage batteries pressure should make 12 Century
3 Discharged battery can already freeze at temperature – 10°С. Before joining of a starting cable it is necessary, that the frozen battery has necessarily been defrozen.
4 Discharged battery should be attached according to rules to an onboard network.
5 Check up 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 lay brakes. Manual a check point establish in neutral position, automatic in parking position “Р”.
8 Switch off all consumers of a current.
9 Engine of the feeding car in the course of a charge necessarily should work on single turns. Thus, the generator is protected from the damages, able to arise owing to peaks of pressure 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. Preliminary cast away a cover-1. If the fed car is not BMW 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 feeding cars.
10c. Attach a black cable to a weight point (-)-2 on an amortisation rack of the feeding car. If the feeding car is not BMW 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 amortisation rack of the fed car. If the fed car is not BMW 3 series, attach a cable to a reliable point of weight.

Do not attach to a negative pole (-) the discharged battery. Is better for this purpose the metal part connected by bolts with the block of cylinders approaches. Under adverse circumstances joining of a cable to a negative pole of the discharged battery can cause explosion of the battery owing to искрообразования and detonating gas allocation. Plugs of a starting cable at the attached cables should not contact with each other and accordingly 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 a starter no more than 10 with as owing to the raised 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 occurrence 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 a cable during 3 mines of work.
14 For an exception of peaks of pressure at separation at the car with the discharged battery include the fan and heating of back glass. Do not include a headlight. Lamps накаливания at the raised pressure fuse.
15 After end of start from the extraneous car disconnect cables in sequence, return to joining. 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.