BMW 3 series E46
Since 1998 of release
Repair and car operation
The BMW of 3 series Е46
+ Cars BMW 3 (Е46)
+ Current leaving and service
+ The engine
+ Systems of cooling, heating
+ Power supply systems, injection and release
+ Engine electric equipment
+ Manual transmission and transmission a line
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
The general information and security measures
+ Leaving and repair of damages of a body
+ External elements of a body
+ Internal elements of a body
+ Onboard electric equipment
+ Electric equipment schemes
The general information and security measures
Cars BMW 3 have "universally-kuzovnuju" the scheme where the panel of a floor with the forward and back lateral beams (longerons) of a frame playing a role of carriers of other details of a body of the car, forward and back suspension brackets and other mechanical components is used. Some of components are especially vulnerable at failures both can be отболчены and are repaired or replaced. The cowl, a cover of a luggage carrier, a door and forward wings concern them. Forward and back glasses are pasted.
Descriptions are included in the given Chapter only procedures of the general care by a car and restoration body and repair кузовных the panels lying within qualification of the average mechanic-fan.
Many from specified above design elements are fixed by so-called screws Torx, for отворачивания which the special screw-driver is required.
If any works with the internal equipment are spent, it is necessary to observe following instructions:
Security measures at performance кузовных works
Welding or the ration is not supposed by soft or firm solders filled with a working body of elements of a central air or if there is a danger of their heating.
It is not necessary to open a contour of cooling of the conditioner as liquid hit on a skin can cause обморожение.
At casual hit of a liquid on a skin immediately wash out a place of defeat by cold water within not less than 15 minutes the Liquid of the conditioner has no colour and a smell and it is heavier than air. At leaks of a cooling liquid there is a danger of a poisoning in the bottom part of the car (liquid presence is not felt).
The sheeting of the bottom of PVC in a welding place is necessary for smoothing out a wire brush and, heating by hot air to temperature +180°С, to remove шпателем.
Body elements, поверженные the strengthened corrosion, are zinced. Not сошлифовывайте a zinc covering before welding (it is authorised to remove a covering only at a ration firm solders). Thus the welding current should be increased by 10 %.
At carrying out of repair of a paint and varnish covering it is authorised to heat up the car in the special furnace to temperature not above +80°С. Otherwise there is a danger of damage of electronic devices.
At carrying out of welding works on the car with the established monitors it is necessary to observe the following:
Disconnect a negative cable (-) the storage battery at the switched off ignition. The battery is in a luggage compartment behind a cover on the right side. At cars BMW 316i, 318i the battery settles down in an impellent compartment.
Isolate a negative pole (-) the storage battery to exclude possibility of casual contact.
If near to the storage battery welding works or other works connected with formation of sparks are made, it is necessary to remove the battery necessarily.
At carrying out of welding works the plug of the welding device should take places probably more close to a place of welding and should be well connected to a body, the maximum distance of 1 m.
Use of joining of weight of the car with the fixed wires as joining of weight for the welding device is not supposed. If necessary preliminary disconnect wires and protect a carving of a bolt of weight a nut.
At cars with navigating system after end of welding works it is necessary anew откалибровать a probe of a magnetic field of navigation (work HUNDRED).
On elements of a design of the car, exposed to special influence of corrosion, the zinced sheets are established. Before welding it is not necessary to remove a zinc layer. He acts in film only before the soldering firm solder. The current strength thus is necessary for increasing by 10 %.
At installation of elements of a body it is necessary to observe the established backlashes. Otherwise there is, for example, a gnash at closing of a door or the raised noise of a wind during movement. The backlash should have constant width on a contour прилегания details. The deviation should not exceed 1 mm.
Performance of a following condition is obligatory. Surfaces adjoining to each other elements should be parallel. Displacement inside on 1 mm of the elements located more close to a back part of the car in relation to elements, located ahead of a body is admissible.
For example: the Forward edge of a back door can settle down on 1 mm more deeply, than a back edge of a forward door.
Demanded values of backlashes are resulted in Specifications.