LocationNULL. Jul 7, 2021 The strange thing is once it is jump started, I can more or less turn the car off straight away and it will start no problem. How is this the case, if my battery is 'dead' can it start up without having to recharge? OEM BATTERY FOR AUDI A4 B8 2011. markuy0817; Sep 25, 2017; Replies 1 Views 3K. Sep 25, 2017 Yes I've also tried with jump pack connected under bonnet jump points Ran resistance tests on every fuse in boot and pass / driver panel. Ran voltage tests between battery and CCM/BCM2. Ive also tried a new CCM/BCM from an identical vehicle with no luck. At a major loss here. usethe battery of another car to jumpstart: ADischarged. 1. Join the lead’s one end to the jump-start terminal shown in Figure 279 1 (terminal). 2. Join the other end of the positive Thejump-start terminals are located in the engine compartment. Please observe the general notes on the vehicle battery link . Connecting the positive terminals with the Theeasiest place to check this out is at the starter relay location. You can check several things there: A - Check for 12V+ from ignition switch "START" position. B - Check for constant 12V+ from battery. C - Check for resistance to ground through the starter solenoid. D - Check for ground from clutch switch/anti-theft. Thecar monitors the battery voltage and won't let the car crank if it's under a minimum amount. In that case, the battery could still have enough juice for the lights and other activities, but the ECM is holding it back from cranking the starter. Daily Driver: B8 A4 quattro 6MT, Aruba Blue on Black, Premium Plus, Sport Package, Bang & Olufsen. Mistakes such as jump-starting the battery with the cables reversed and grounding the alternator’s battery terminal with a wrench, can cause the fuse to blow. A blown alternator fuse will prevent the charging system from working properly, leading to a variety of problems that can mimic a bad alternator. AudiA4 2016, A5 2017, Q5 2017, A4 USA/ CAN 2016, Audi A5 USA / CAN 2016, Q5 USA/ CAN 2017; R8 2015: B11A201: Hydraulic pump relay So something is CLEARLY draining that battery overnight. Jump started it using a NOCO Boost Plus GB40 - Started straight away when this was connected, didn't even struggle! Location .

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