2014 Q5 TDI , vcds fuel pump prime procedures
Greetings, getting ready for my 15k maintenance and want to confirm fuel pump prime procedures after changing the fuel filter.
In VCDS under Engine (01), Basic Settings (04), transfer fuel pump (fp) test. When test is active I can hear the pump running. Can someone with service manual access confirm the procedure? Thanks in advance, |
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Originally Posted by pedser
(Post 24569711)
Greetings, getting ready for my 15k maintenance and want to confirm fuel pump prime procedures after changing the fuel filter.
In VCDS under Engine (01), Basic Settings (04), transfer fuel pump (fp) test. When test is active I can hear the pump running. Can someone with service manual access confirm the procedure? Thanks in advance, http://wiki.ross-tech.com/wiki/index...CR_TDI_Engines For VAS / ODIS: Attachment 80694 Audi A4 2008 ➤ , Audi A5 Cabriolet 2009 ➤ , Audi A5 Coupé 2008 ➤ , Audi ... Fuel supply system, diesel engines - Edition 06.2012 7.1 Bleeding fuel system Vehicles with 4-cyl. or 6-cyl. engine (generation I) except those with engine code CAPA Caution Running when dry causes irreparable damage to high-pressure pump. ♦ If the fuel filter, the fuel lines or the supplementary fuel pump -V393- are renewed, it is important to bleed the fuel system before the engine is started for the first time. – Bleed fuel system ⇒ Rep. gr. 23 ; Performing first fuel filling after installing high-pressure pump . Vehicles with 4-cyl. or 6-cyl. engine (generation II) or with engine code CAPA ♦ Due to the design of the engine, with a fuel system pressurisation pump located in the fuel tank, it is not necessary to bleed the fuel system. ♦ The fuel system bleeds itself when the starter is operated. 7.2 Bleeding fuel supply line leading to metering pump - vehicles with auxiliary heater Note On vehicles with auxiliary heater, it is important to bleed the fuel supply line leading to the metering pump after working on the fuel delivery unit. Special tools and workshop equipment required ♦ Diesel extractor -VAS 5226- ♦ Hand vacuum pump -VAS 6213- Procedure • Auxiliary heater switched off. – Connect diesel extractor -VAS 5226- to compressed air. – Remove fuel supply line -2- from fuel tank at metering pump -1-. – Connect diesel extractor -VAS 5226- to fuel supply line with adapter from hand vacuum pump -VAS 6213- and bleed fuel supply line by operating extractor briefly. – Re-attach fuel supply line to metering pump. – Switch auxiliary heating on and run at full load for approx. 10 minutes. |
Thank you
Thanks for the reply, the vcds procedure does not work but your vas/odis procedure lead me to the right place. Using the vcds under engine, output test, then select fuel pump electronics did performed a fuel pump start.....
Thanks, P |
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