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Poor Operation, Incorrect Operation > < Thermostat Diagnosis - 2.0L Diesel LBS, LBX, LBR, and LBQ
Technical Service Bulletin 2664
Subject: Coolant level - Display shows "Coolant level low"
Brand: Model: Model Year: VIN: Engine: Transmission:
from | to from | to
Opel, Vauxhall Astra-J 2010   2011 A8000001   W0LPD6EB2B8028109 All All
Opel,Vauxhall Astra-J 2010   2011 AG000001   W0LPE6EA0BG044867 All All
Opel,Vauxhall Astra-J 2010   2011 A3000001   XUFPE6DD8B3002118 All All
Option
Complaint Display shows "Coolant level low" despite the coolant level is correct adjusted.
Cause Defect of sensor or coolant surge tank.
Production Improved parts have been introduced in production as of VIN: Ellesmere Port: W0LPD6EB2B8028109 Gliwice: W0LPE6EA0BG044867 St. Petersburg: XUFPE6DD8B3002118

Remedy

In case of customer complaint the following check has to 
be carried out.

1. If the magnet float in coolant surge tank is 
   in the same position as the coolant fluid 
   the coolant level sensor (partno.: 13276326 /
   catalogueno.: 13 04 006) has to be replaced.

2. If the magnet float in coolant surge tank is submerged, 
   the coolant surge tank (part-no.: 13360063 / 
   catalogue-no.: 13 04 014) has to replaced. 

Note: 
This information is only valid for a correct coolant level.

FunctionalGroup J - Engine
Complaint Group 04 - Electrical failures,13 - No/Poor Function,23 - Wrong Indication
Trouble Code None

Poor Operation, Incorrect Operation > < Thermostat Diagnosis - 2.0L Diesel LBS, LBX, LBR, and LBQ