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Technical Service Bulletin 2685
Subject: Engine A14NEL/T - DIC message 'AC off due to high temp', SVS on, TC P0128 set
Brand: Model: Model Year: VIN: Engine: Transmission:
from | to from | to
Opel, Vauxhall Astra-J 2010   2011   A14NEL| A14NET All
Opel, Vauxhall Meriva-B 2010   2011   A14NEL,A14NET All
Option
Complaint The DIC message of "AC off due to high temp" comes up and the TC P0128 is stored.
Cause After switching off the hot engine the coolant temperature could reach above 130°C. This high temperature causes the thermostat to open until the limit stop and stick in the open position. The measured coolant temperatures in radiator and engine will be rated as illogical which causes the trouble code and also switches off the air conditioning.
Production Improved thermostats have been introduced in production as the following engine: 19WA3763 (03-Jan-2011).

Remedy

In case of customer complaint replace the thermostat.
First batches of improved parts are market with a green dot.

Labour Times:                           TC:            Hours:

Astra-J

U3 268 50      Replace thermostat       90             0.7 

Meriva-B

U3 268 50      Replace thermostat       90             0.5

The costs for this repair will be covered during the normal warranty.
The regular warranty procedure will apply.

FunctionalGroup J - Engine
Complaint Group 06 - Failure Code Setting by Control Unit
Trouble Code P0128

Engine A14NEL/T - Oil consumption and different trouble codes from the turbocharger system. > < Engine A14NEL/T - Oil consumption and different trouble codes from the turbocharger system.