Transporter 2020 ➤
Auxiliary heater - Edition 04.2020
3
Repair notes
WARNING
If the vehicle has been converted by ABT e-Line, it is possible
that the repair instructions provided below are no longer valid.
•
In this case, the workshop manual in ELSA Pro under the
tab “Superstructures and modifications” provided by ABT e-
Line must be observed and applied.
⇒ “3.1 Rules for cleanliness”, page 6
⇒ “3.2 General information”, page 6
⇒ “3.3 General repair instructions”, page 6
⇒ “3.4 Contact corrosion”, page 7
⇒ “3.5 Nuts and bolts”, page 7
⇒ “3.6 Routing and attachment of lines”, page 7
3.1
Rules for cleanliness
Even small amounts of contamination/soiling can lead to defects.
Therefore, observe the following rules for cleanliness when work‐
ing on the air conditioning system:
♦ Seal open lines and connections immediately with clean plugs,
e.g. from engine bung set - VAS 6122- .
♦ Place removed parts on a clean surface, and cover them over.
Use only lint-free cloths.
♦ Carefully cover opened components or seal them if repairs
cannot be carried out immediately.
♦ Install only clean parts; do not remove new parts from pack‐
aging until immediately before installing. Do not use parts that
have been stored outside their packaging (e.g. in tool boxes).
♦ If system is open, do not work with compressed air.
♦ Protect disconnected electrical connectors from dirt and water,
and reconnect them only when dry.
3.2
General information
♦ The engine control unit has a self-diagnosis capability. Before
carrying out repairs and for fault finding, first read event mem‐
ory.
♦ For trouble-free operation of electrical components, a voltage
of at least 11.5 volts is necessary.
♦ Do not use sealants containing silicone. Particles of silicone
drawn into the engine will not be burnt in the engine and dam‐
age the lambda probe.
♦ Vehicles are equipped with a crash fuel shut-off circuit. It re‐
duces the danger of a fire in a crash as the fuel pump is
switched off via the fuel pump relay.
♦ The system also improves the starting characteristics of the
engine. When the driver door is opened, the fuel pump is ac‐
tivated for 2 seconds to build up pressure in the fuel system.
3.3
General repair instructions
Never attempt to repair any components of the auxiliary/supple‐
mentary heater. Defective components must be replaced with
Genuine parts.
6
Rep. gr.00 - Technical data
English 