Be aware that there are two suppliers for the Volkswagen TDI diesel glow plugs (Bosch and Beru).
If you encounter a malfunction message “$33$10” while performing a software update on a 2012 Volkswagen Routan, try removing pin 6 from the DCL and attempt the software update with the pin removed.
This bulletin applies to 2007 and later Volkswagen Beetle models equipped with a 2.5L engine. If DTC P3047 (activation starter relay 2 short to B+), this fault may be due to a loose or damaged starter signal wire.
If a groaning or screeching noise is present on a 2010 Volkswagen Passat, and the noise is heard at the transmission during high load clutch operation, the clutch hub springs may have broken down, causing a vibration through the pressure plate.
This bulletin applies to 2011 Volkswagen Routan and other 2000-2011 VW models with A/C and a three-wire G35 pressure sensor.
If you receive a complaint of low power with a Volkswagen TDI engine, check the mass airflow (MAF) sensor reading in measuring block group 00, field 10.
This bulletin applies to 2007 Volkswagen Passat Wagon models. After installing a new parking brake switch, the electronic parking brake may not respond, with a warning light on.
If a 2009 Volkswagen Beetle displays a flashing coolant light when the engine is first started cold, do not allow the coolant to warm.
If a 2013 Volkswagen Passat shows a MIL on with DTCs P0410, P0411 or P1423, this may be caused by a broken or cracked vacuum hose due to temperature variations.
When changing the engine oil filter in a 2009 VW Passat, pay attention to the oil filter seal.
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