Reinstall the battery bracket. Use a battery terminal brush to clean the battery terminals. Connect the positive battery cable and tighten the 10mm nut. Ensure the terminal is secure, doesn't move, or can't be twisted. The last step is to connect the negative cable. Tighten the 10mm nut on the negative clamp. ImportantIf battery part number is 9 digits length you need to add two additional spaces to get 11 digits.If battery part number is 10 digits length you need 1. Getting Started - Prepare for the repair 2. Access Battery - Learn where the battery is located 3. Remove Bracket - Take off the bracket that secures the battery 4. Remove Cables - How to disconnect the cables the right way 5. Clean Cables - Clean with baking soda, water and a wire brush 6. New Battery - Install new battery and prevent corrosion After an hour of wait, put the charger back on: should only 40% capacity! Battery seems origina (it is an Audi battery), 7 years may be time to change. Just careful since the A6 ahs the 'intelligent' battery control module. 01 Allroad Tiptronic, TCU tune, mild stg 3 (350 HP) tune (stock injectors) KraftwerkTurbo TM1. A6 / S6 (C6 Platform) Discussion - A6 Key Fob Battery Replacement - Hey guys, Which battery to purchase as replacement for the key fob? Discussion Discussion forum for the C6 Audi A6 produced from 2004-present and Audi S6 produced from 2007 - 2011 A6 Key Fob Battery Replacement. Reply Subscribe . Thread Tools Search this Thread A6 / S6 (C6 Platform) Discussion - Disconnect the Battery Question. - Can anyone help please? (C6 Platform) Discussion Discussion forum for the C6 Audi A6 produced from 2004-present and Audi S6 produced from 2007 - 2011 Disconnect the Battery Question. A6 C7 car battery replacement. SSA6. A6 (C7 Platform) Discussion. 45. 02-10-2018 08: Hi guys n gals I am confused with this whole battery replacement i keep seeing these codes 019 020 as my battery is 4FO 015 1050 12V 110AH 520A DIN 850AE varta please confirm what battery i need is it 019 or 020 its for a6 c6 4f2 2008 diesel salon rear boot cheers Audi A6 Club ; Audi A6 (C6) Forum ; which battery ref number which battery Step 4 - Assemble and install new struts. Assemble your new strut with the coil spring and get the top hat in place. Compress the spring sufficiently for the top hat mounting bolts to peek through. Tighten the strut top bolt to 20 ft/lbs. Figure 5. New strut being held by vice while spring is compressed as one unit. In summary, for the Audi A6 C6 model, specific causes for the car not starting include a dead battery, a faulty starter motor, a failed crankshaft position sensor, and a malfunctioning fuel pump. It is important to diagnose the specific issue to determine the necessary solution and get the car running again. 1.3.3. Take your homemade tool and wedge it in on both sides of the connection pin (see below). The trick is to get it in deep enough to bend down the little tabs that are holding it in place. I'd estimate about a half-centimeter in. Step 4. With your tool in place, pull on the wire from the back side till it releases. 1iCfHYb.