The manual says that if there's no power at the glow plugs, check the relays and fuses. It could also be a bad wiring harness, a common problem. But that's not causing your no start. Your 2002 has a wire to each glow plug. 2001 and earlier have all the glow plugs in series. If you still think it's the glow plugs, try unplugging the coolant Glow plug control unit Glow plugs 1~4: F28: 50A: Fuse for trailer terminal 30 (Australia only) F29: 30A: Thermal fuse 1 for driver’s seat adjustment mechanism Thermal fuse 1 for front passenger’s seat adjustment mechanism: F30: 50A: Terminal 15 supply relay Fuse supply: -SC9- bis -SC16-, -SC25-, -SC26-, -SC27-A1: Main relay Terminal 30 Locations of relay and fuse boxes in the audi q5. 1. Fuse box and connector for starting the engine from an external power source in the plenum chamber; 2. Fuse box on the right side of the front panel. The fuses installed in it are indicated on the wiring diagram "SC". Audi Q7 4.2 2009 - 1.11- RELAY/FUSE PANEL -SF- IN LUGGAGE COMPARTMENT - RIGHT SIDE. The relay/fuse panel -SF- is located in luggage compartment on the right side interior, refer to illustrations below. For fuse color code and amperage rating, refer to FUSE - COLOR CODES. Get Access all wiring diagrams car. Note that the glow plugs on your model have a pressure sensor integrated, because of US emission regulations. The pressure sensors are used for improved control of the combustion process. Prior to simple replacement, you could interchange the glow plugs of cylinder #4 and another cylinder, and check whether the problem moves, i.e. another Fiat Stilo (2001-2010 / MK 1) If the glow plug fault warning light flashes on the instrument panel display during start-up, a diagnosis can be made and the fault memory in the eng. Glow plug replacement instructions. Vauxhall Astra (1991-1998 / Astra F) Open the front hood and intercept the glow plugs: they are located in the front part of the AvtHt. Do this if you want to remove and replace diesel engine glow plugs. These were taken of a Vw 2.0 TDI engine.1. Take the engine cover off2. Unplug harness (ge However, while a gasoline engine needs the spark plugs to fire continuously during operation, a diesel engine uses compression and heat, not the glow plugs, to maintain combustion. The glow plugs on a diesel engine will usually last around a 100,000 miles but can fail before then. Making sure that the right quality glow plugs are put in your Audi Q7 3.6 2008 - 1.13- RELAY/FUSES PANEL E-BOX - PLENUM CHAMBER. The relay/fuses panel E-Box (electronic box) is located on the left side of the engine compartment plenum chamber, refer to illustration below. For fuse color code and amperage rating, refer to FUSE - COLOR CODES. Get Access all wiring diagrams car. Decided to replace the bad glow plug with a view to then driving up and down the motorway for a while to try and clean the dpfs. However on the way to the parts place Got some new symptoms: - Flashing coil light with limp mode (vastly restricted power) Jun 22, 2019. #13. Your engine will start fine with a full set of failed glow plugs in this weather. If it’s not firing at all it’s likely not injecting fuel. Top reasons are engine speed not great enough, if the starter is not cranking engine at minimum of 280 rpm = no fuel added. (Check started, battery, grounds). The glow plug module on the 2.0 diesel Q5 is located in the plenum chamber, so the area behind the bulkhead under the plastic shield. Its number 37 on the attached diagram. I hope this answers your question but I want you to be 100% happy with the answer so do please feel free to ask any further details by replying to this thread.

audi q7 glow plug relay location