Seat Leon 2013 Workshop Manual page 247

4-cylinder petrol engine (1.2 l direct injection, 4 V, turbocharger, EA211) - Edition 02.2017
– 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-
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permitted unless authorised by SEAT S.A. SEAT S.A does not guarantee or accept any liability with
respect to the correctness of information in this document. Copyright by SEAT S.A.
León 2013 ➤ , León ST 2013 ➤
6. Engine control unit
241