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...Subaru Trezia Model year: 2011 - 2012 Engine: 1.4 D (1ND-TV) Accumulation of oil in charge-air cooler The regeneration process for the particle filter can cause engine oil from the crankcase breather and/or the turbocharger to accumulate in the charge-air cooler. Under certain opera...

...Opel Astra J Model year: 2010 - 2012 Risk of fire due to blocked radiator fan On the vehicles mentioned above, the battery cover can come loose, get into the radiator fan and block it. This can result in noises from the engine compartment and an elevated engine temperature. There is...

...Audi A4 (8D, B5) Model year: up to 1999 Engine: 1.6i (AHL) Indefinable noises Accumulation of condensation On the vehicles mentioned above, bubbling and/or gurgling noises can occur at idle speed. This may be due to condensation which accumulates in the ventilation hose of the char...

...Frank Massey's Top Ten Tests with PicoScope: #6 Power, ground, current In Frank's sixth video, he looks at the relationship between current, voltage drop and ground reference. Frank discusses the theory of the test, what is being tested and the use of PicoScope software in detail. H...

...Correct determination of the piston combustion bowl depth SI 1012 For technical personnel only! Page 1/1 Correct determination of the piston combustion bowl depth Piston with crown elevation Situation In order to allocate the correct pistons to an engine in the case of repa...

...Water pump types and functions An engine must be cooled to prevent it from overheating. The water pump is the 'heart' of any cooling system. Our new technical video shows the basic information and the differences between mechanical and electrical water pumps....

...VW Volkswagen Bora Model: 2.0i Variant Model year: 2002-2005 All models with ABS ABS warning light illuminates Error code: 1486 System function test activated If the above error is discovered together with an illuminated ABS warning light, the ABS/ESP control unit will automatically...

...Citroen C3 Pluriel (HB) Poor air-conditioning system performance System pressure too high. If customers complain about the air-conditioning system performance on the vehicles mentioned above, the cause may be a faulty condenser. Corrosion and/or vibrations can cause the condenser fi...

...Audi A6 (4F2/C6) Model year: 2005 - 2011 Engine: 2.0 TFSI Interior blower not working Error in data bus communication If the interior blower fails on the vehicles mentioned above, the cause may be a faulty pressure sensor in the air-conditioning system. The blowe...

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    Technical Bulletin

  • Diagnosis of DMF Noises

  • Nov 16

  • LuK (131) Contact
  • PDF

...Diagnosis in case of noises Replacement of the dual mass flywheel only after thorough inspectionIn the course of troubleshooting, the dual mass flywheel (DMF ) is often suspected of being defec-tive. Particular caution should be exercised here, because disturbing noises are often attri...



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