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Hi All. I am new to the forums, so I apologise if this doesn't read too well, but looking forward to helping people out in the future. I have a 2009 A4 2.0 TDi S-line 170ps 6-speed manual Start/Stop - Current mileage 134500 (NOT QUATTRO) Previously, I had a problem with a failed DFP sensor, which cost me £50 by the roadside, nearly 2.5 years ago. (Just after I had it) Whilst on my home on Saturday, I had the Emissions Control Light come on again. So, after the information i had from the VW Audi RAC guy who attended last time, I decided I would not risk driving it so I wouldn't risk clogging the DPF, just in case the same sensor had become clogged or failed. However, I have had the car plugged in at the garage today (my old VAGCOM cable I had wont talk with my car) and it has thrown up a number of error codes on the intake side. This came as a kind of relief that the DPF isn't dead. The car has been running fine the last few weeks and has been driven over 1000 miles in the last 2 weeks, mostly motorway driving. Servicing is done on a long life service, as and when required with castrol edge oil. Air filter was replaced on the last service. Fuel filter was last replaced on the previous service. I have looked up the codes (detailed below) and wondered if any of you guys could shed any light on it. The garage has cleared the codes and advised they will re-check when it goes in for new brakes on Friday. ERROR CODES: P1603 - Internal Control module Failed (Think this was caused by me trying my old cable) P15A1 - Neutral position sensor P15A1 - Neutral position sensor - Implausible signal P2008 - Intake manifold flap P2009 - Electrical Malfunction P010A - Mass Air Flow P1016 - Valve for Air Filter Bypass --------------------------------------------------------------------- The below is some further info I sourced off the web and I apologise for the way it is written, but I had to convert the info from Dutch to English..... Error code decriptions: Error Code: 18440 P2008 This error code is " Generic OBD " ( for each automaker same description and meaning). The following symptoms / causes / solutions are specific to VAG cars ; to other car manufacturers who may differ in detail. nl Valve Intake Manifold 1 Airflow Control for electrical fault in circuit du Saugrohrklappe 1 für Luftstromsteuerung elektrischer Fehler im Kreis Strom and Intake Manifold Flap, Bank 1 Circuit / Open - MIL On Additional information on the error codes Possible symptoms : ERROR lamp (MIL) lights Possible causes: Fuse (s ) are poorly connected or defective B + terminal 30 and B + terminal 15 is defective Valve is contaminated Valve is stuck Wiring and / or connections to / from the control valve defect Valve control does not work (properly) Possible solutions: Check / replace fuse (s) remove the fuse (s) out Make the ends of the fuse (s) clean (very light sanding with fine sandpaper , then very little contact spray on it) fuse (s ) by measuring with a multimeter ( the fuse (s ) sometimes looks fine , but appearances can be deceiving ) fuse (s) replace / replace Check B + B + terminal 30 and terminal 15 Check postition valve ( measuring blocks ) / Replace Valve Disassemble the valve and clean him Extra info : These are the valves in the intake manifold. These sit there for part load, a tdi has through this way stratified combustion = more economical. link , link . So to see something with the adjustment. Flashy nothing serious as long as they are open , it does not cost . And in consumption also is not so bad . This gives no lights etc in the dashboard. If you have full power , you can just drive -------------------------------------------------- Layout Code : P15A1 This error code is " Manufacturer Specific " ( for each automaker a different description and meaning). The following description / symptoms / causes / solutions are specific to VAG cars. nl Sensor Neutral Position unlikely signal du and Neutral position (NP ) sensor implausible signal Additional information on the error codes Possible symptoms : ERROR lamp (MIL) lights Possible causes: Wiring and / or connections faulty sensor defective Possible solutions: Check / repair wiring and connections Check ( measuring blocks ) / replace Sensor ---------------------------------------------------- Error Code: 18441 P2009 This error code is " Generic OBD " ( for each automaker same description and meaning). The following symptoms / causes / solutions are specific to VAG cars ; to other car manufacturers who may differ in detail. nl Valve Intake Manifold 1 for Airflow Control signal is too weak du Saugrohrklappe 1 für Luftstromsteuerung Signal zu klein and Intake Manifold Flap ; Bank 1 Short to Ground - MIL ON Additional information on the error codes Possible symptoms : ERROR lamp (MIL) lights Possible causes: Fuse (s ) are poorly connected or defective B + terminal 30 and B + terminal 15 is defective Valve is contaminated Valve is stuck Wiring and / or connections to / from the control valve defect Valve control does not work (properly) Possible solutions: Check / replace fuse (s) remove the fuse (s) out Make the ends of the fuse (s) clean (very light sanding with fine sandpaper , then very little contact spray on it) fuse (s ) by measuring with a multimeter ( the fuse (s ) sometimes looks fine , but appearances can be deceiving ) fuse (s) replace / replace Check B + B + terminal 30 and terminal 15 Check postition valve ( measuring blocks ) / Replace Valve Disassemble the valve and clean him Extra info : These are the valves in the intake manifold. These sit there for part load, a tdi has through this way stratified combustion = more economical. link , link . So to see something with the adjustment. Flashy nothing serious as long as they are open , it does not cost . And in consumption also is not so bad . This gives no lights etc in the dashboard. If you have full power , you can just drive Read this post on the audiforum.nl ----------------------------------------------------------- Error Code: 17424 P1016 This error code is " Manufacturer Specific " ( for each automaker a different description and meaning). The following description / symptoms / causes / solutions are specific to VAG cars. nl valve for filter bypass valve ( N275 ) interruption du Ventil für Bypass Klappe Luftfilter ( N275 ) Unterbrechung and Bypass Flap filter valve ( N275 ) Open Circuit Additional information on the error codes Possible symptoms : unknown Possible causes: Wiring and / or connections faulty ( N275 ) faulty Possible solutions: Check the wiring and all connections Check ( measuring blocks ) / replace ( N275 ) ------------------------------------------------------------ Error Code: 16484 P0100 (the corresponding 'old VAG code' is: 00553) This error code is "Generic OBD" (for each automaker same description and meaning). The following symptoms / causes / solutions are specific to VAG cars; to other car manufacturers who may differ in detail. nl Air Flow Sensor (G70) supply du Saugrohrdruck (G70) Anschlußspannung and Mass Air Flow (MAF) (G70) Supply Voltage Additional information on the error codes Possible symptoms: Probably no real serious problems reduced ability Infrequent / rough running Engine stalls Fuel consumption too high exhaust smokes ERROR lamp (MIL) lights Possible causes: This error code is usually caused when you plug the LMM disconnecting and then turn it on contact. The ECU sees no LMM more Fuse (s) are poorly connected or defective Check whether the MAS is not too close to a) ignition / bobinedraden solenoid valve, c) relays, d) motor Bad contacts to / from the LMM (check especially the connection to the ECU) Check for leaks past the LMM The air filter is clogged (leak in the air intake) Exhaust is blocked Correct values ​​for the LMM are ao calculated on the basis of the values ​​that pass the MAP sensor. So check the MAPsensor: MAP sensor itself Wiring and / or connections faulty Leakage to / from the MAP sensor The LMM is polluted if you use a reusable air filter that is soaked in oil, beware that there is not too much oil is (Just standard) The LMM (G70) is broken Possible solutions: Error codes in the LMM are sometimes difficult to solve / able to put you on the wrong track Reset the error code, and hope he does not come back Before replacing the LMM (G70), first try the following once, maybe it helps: Replace the air filter make the MAS clean (blow or special cleaner), it does not often, but you never know reset error codes Check / replace fuse (s) remove the fuse (s) Make the ends of the fuse (s) clean (very light sanding with fine sandpaper, then very little contact spray on it) fuse (s) by measuring with a multimeter (the fuse (s) sometimes looks fine, but appearances can be deceiving fuse (s) replace / replace Check the exhaust for blockage Check / repair wiring and connections to / from the LMM Check for leaks around the LMM Check the voltage of the LMM Check (measuring blocks) / replace LMM Check (measuring blocks) / replace the MAP sensor The dealer if there is a software update for the error check The ECU, replace but that is the last solution Extra info: LMM (G70) Air pressure sensor in the intake manifold / MAP sensor (G71) For model years 1995-2004 (?), The TDI VAG a bad reputation for the MAS. Which is slowly dirty and dirty (not easy to clean), and loses slowly (!) Functionality, somewhat irregular course and loss of ability as a result. The functionality can be tested by using [01 engine] a log, [meas.blocks-08], group 003 (3rd gear, floored by 1700-4000rpm)]. ----------------------------------------------------------------------- I appreciate you taking the time to look at this for me. :P As a side note, have any of you had issues with wear on the drive shafts? I have had 2 inner cv's done this year and the outer on the O/S is now knocking. :( Cheers, Rob.

Hi guys looking to join the audi group The question I have is are the higher mileage cars any good the one I'm looking at has 141,000 miles It's the 2.0 tdi s line 2009 looks great sounds great just worried about the miles any advice on what to look for and common problems thanks mark