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– Hold hot air blower - VAS 1978/14A- with nozzle attachment
-arrow- to thread of shear bolt and heat thread for about 20 to
30 seconds.
– Unscrew shear bolt -1- using screwdriver -2-.
– Detach metal locking plate from connectors for engine control
unit - J623- .
– Release and detach connectors.
Installation
Installation is carried out in the reverse order. Please note the
following:
– The metal locking plate must always be re-fitted on the engine
control unit - J623- .
– Clean threaded holes for shear bolts to remove any residue
from locking fluid. This can be done using a thread tap.
– Use new breakaway bolts.
After installing a new engine control unit, the following operation
must be performed:
– Connect vehicle diagnostic tester .
– Activate engine control unit with the function “Replace engine
control unit” on vehicle diagnosis tester in “Guided functions”
mode.
6.1.2
Removing and installing engine control
unit - J623- (with protective housing)
Removing
Special tools and workshop equipment required
♦ Repair set for cable lines - VAS 1978 B-
León 2013 ➤ , León ST 2013 ➤
4-cylinder petrol engine (1.2 l direct injection, 4 V, turbocharger, EA211) - Edition 02.2017
6. Engine control unit
241
