2017 Audi Q7 — battery dies after the car sits for a weekend

Start with the test that can prove you wrong. Move a coil or plug on the 2017 Audi Q7 if it's cylinder-specific and see whether the code follows. That's the branch I'd chase this week. This is from a 2017 Audi Q7 in Pennsylvania. I'd want that in writing, not as a promise. If that fails I'll eat the diagnostic fee.

Intermittent stuff lies if you only catch it once. Two 2017 Audi Q7s can feel identical and have different causes, so measure before you copy someone else's repair. If the cheap test changes it, stop and reassess. On “battery dies after the car sits for,” that was the fork that mattered for me. I'd want a dollar figure or a measured spec, not 'should be fine.' I'd rather pay for diagnosis than a second guess-repair.

If it were in my driveway, get a real battery/charging test on the 2017 Audi Q7, not just resting voltage, before blaming a module. Save the big job until that test fails. A shop burned me once by skipping that step. I already checked the easy fluid levels.

If it were in my driveway, a pressure test beats staring at a dry driveway if the 2017 Audi Q7 is losing coolant with no puddle. Save the big job until that test fails. If they can't show the line item, I assume it's hiding. I keep a notes app thread for this now.

I wouldn't throw parts yet. A pressure test beats staring at a dry driveway if the 2017 Audi Q7 is losing coolant with no puddle. If the cheap test changes it, stop and reassess. Time, temperature, and whether it's in gear are the notes that actually help a shop. Checking again after work.

Ask what changed right before it started. Write temp, speed, and in-gear vs coast when the 2017 Audi Q7 does it — then decide on parts. Don't erase codes until someone who can help has seen them. Time, temperature, and whether it's in gear are the notes that actually help a shop. I'd rather pay for diagnosis than a second guess-repair.

This is usually cheaper to test than to guess. Two 2017 Audi Q7s can feel identical and have different causes, so measure before you copy someone else's repair. That's the branch I'd chase this week. Stop there until you know. That's my plan before I call anyone.

Intermittent stuff lies if you only catch it once. A pressure test beats staring at a dry driveway if the 2017 Audi Q7 is losing coolant with no puddle. Don't erase codes until someone who can help has seen them. On “battery dies after the car sits for,” that was the fork that mattered for me. If it doesn't change the out-the-door or the repair estimate, it's noise. Parking it somewhere I can hear it better next time.

I wouldn't throw parts yet. Get a real battery/charging test on the 2017 Audi Q7, not just resting voltage, before blaming a module. If the cheap test changes it, stop and reassess. I'd want a dollar figure or a measured spec, not 'should be fine.' Worth doing even if the car feels fine right now. I'd rather pay for diagnosis than a second guess-repair.

Log the conditions before you spend. Swap the cheap/easy piece first on the 2017 Audi Q7 and see if the fault moves. Don't erase codes until someone who can help has seen them. On “battery dies after the car sits for,” that was the fork that mattered for me. Time, temperature, and whether it's in gear are the notes that actually help a shop. Happens in gear, not in park, for what that's worth.

If it were in my driveway, capture voltage while the 2017 Audi Q7 is actually failing — after it restarts you've lost the clue. Don't erase codes until someone who can help has seen them. Just my two cents from doing this recently. Heat soak after errands is the other window.

Log the conditions before you spend. Move a coil or plug on the 2017 Audi Q7 if it's cylinder-specific and see whether the code follows. You'll know quickly if you're on the wrong tree. On “battery dies after the car sits for,” that was the fork that mattered for me. Write the result down so the next test isn't a repeat of the last one. This is the filter I use when the thread starts repeating itself. If this is nothing, great. I want that in data.

Ask what changed right before it started. Get a real battery/charging test on the 2017 Audi Q7, not just resting voltage, before blaming a module. If the cheap test changes it, stop and reassess. Keep sale price, fees, and rate as three different conversations. Checking again after work.