Technical information

optimised and therefore the safety of the occupants is increased.
Modern heavy duty cutting equipment is mandatory for cutting the body; older hydraulic cutting tools could be
overloaded.
The heavy duty cutting equipment must be properly used by trained and qualified personnel.
The optimum cutting point for each vehicle is drawn on the emergency services cards.
.
Materials
The type and percentage proportion of each material differ for individual model ranges.
Structural reinforcements in the A- and B-pillars are primarily installed in convertibles, roadsters and coupés. This is
where there are particular stability requirements on these vehicles.
.
Magnesium moulding
Magnesium moulding may be found in the area of the engine compartment and on the instrument panel.
Glazing
.
Single-layer safety glass (ESG)
Single-layer safety glass (ESG) is thermally pretreated glass that can withstand high loads. If the load is too high,
however, it shatters into many fragments with not particularly sharp edges.
ESG is used for side windows, rear windows and the slide/tilt sunroof.
Note:
Intact ESG window glass can jump out of position suddenly when recovery work is being performed on the vehicle.
Depending on the accident situation and the scope of the rescue work, the ESG window glass should be removed first.
ESG window glass can be removed by applying a pointed load, e.g. using a spring centre punch or an emergency
hammer. The ESG window glass should be secured before doing so.
.
Laminated safety glass (VSG)
Laminated safety glass (VSG) consists of two glass panes and an interleaving plastic film. The glass panes remain
largely intact when damaged.
VSG is used for windscreens and possibly for side windows. The windscreens are bonded to the body.
Note:
Since VSG window glass cannot jump suddenly out of place, it only needs to be removed if the rescue work requires it.
VSG window glass can be removed with special glass saws or hooligan tools.
.
Special safety glass
Some vehicles are equipped with special safety glass. It can be identified from outside by virtue of the thicker glass pane.
Special safety glass cannot be cut using conventional emergency equipment.
Electrical system - battery management
12 V batteries
Notes on usage
The procedure should be defined on the basis of the situation assessment at the scene.
The use of active electrical systems, such as power window regulators, seat adjustment or steering column adjustment,
can significantly assist the rescue operation. The decision to disconnect the battery is therefore to be made by the crew
leader on site.
In some cases following an accident, damaged wiring in vehicles can represent a source of ignition despite protection.
Disconnection of the batteries can significantly reduce the risk of fire.
The extremely low risk of an unintentional triggering of the restraint system (airbags, belt tensioners) can be excluded by
disconnecting the batteries.
The ignition must be switched off.
.
Position of the 12 V batteries
The vehicle may be equipped with one or two batteries.
The 12 V batteries are located either in the engine compartment or in the luggage compartment, depending on the
vehicle.
Exception: On the E34 and E32 models the 12 V batteries are located in the engine compartment or under the rear seat
bench.
The precise position of the 12 V batteries for each vehicle is drawn on the emergency services cards.
.
Position of the positive battery cables
If the 12 V batteries are not located in the engine compartment, the red positive battery cable mainly runs on the vehicle
underbody to the engine.
Important!
Danger of injury!
Before glass panes are removed, the occupants should be fully protected against dust and splinters.
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