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3 Repair Information
⇒ 3.1 Clean Working Conditions, page 5 .
⇒ 3.2 Engine Contaminants, page 5 .
⇒ 3.3 Contact Corrosion, page 5 .
⇒ 3.4 Wire Routing and Securing, page 5 .
⇒ 3.5 Cooler and Condenser Assembly, page 6 .
⇒ 3.6 Vacuum System, Checking, page 6 .
3.1 Clean Working Conditions
When working on the fuel supply/injection system, pay careful at‐
tention to the following 5 rules of cleanliness:
♦ Thoroughly clean the connecting points and the surrounding
area before loosening.
♦ Place the removed parts on a clean surface and cover them.
Only use lint-free cloths!
♦ Carefully cover or seal opened components if the repair will
not be done immediately.
♦ Install only clean parts: remove the replacement parts from
their packaging just before installing them. Do not use parts
that have been stored loose (for example, in tool boxes etc.).
♦ If the system is open: do not work with compressed air. Do not
move vehicle.
♦ Make sure no fuel gets onto the fuel hoses. If necessary, wipe
off the fuel hoses immediately.
♦ Protect any disconnected connectors from dirt and moisture
and connect them only when they are completely dry.
3.2 Engine Contaminants
Special tools and workshop equipment required
♦ Engine Bung Set - VAS6122-
♦ To prevent foreign objects from entering when working on the
engine, seal open intake and exhaust channels with suitable
plugs, for example from the Engine Bung Set - VAS6122- .
3.3 Contact Corrosion
Contact corrosion can occur if incorrect fasteners (bolts, nuts,
washers, etc.) are used.
For this reason, only fasteners with a special surface coating are
installed.
In addition, rubber or plastic parts and adhesives are made of
non-conductive materials.
If there are doubts about whether the parts are suitable, then use
new parts. Refer to the Parts Catalog.
3.4 Wire Routing and Securing
♦ Mark the individual fuel, hydraulic and vacuum lines, the EVAP
system lines or the electrical wires before disconnecting and/
or removing them. This will prevent a mix-up when reconnect‐
ing them and will ensure the original installation location is
kept.
♦ If necessary, draw sketches or take pictures.
Golf 2015 ➤ , Golf Variant 2015 ➤
Engine Mechanical, Fuel Injection and Ignition - Edition 04.2015
3. Repair Information 5
ProCarManuals.com
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