Battery very weak after driving any distance. Have to wait 20 min before restarting.

Asked by JErbes Sep 22, 2016 at 12:43 PM about the 2002 Audi A4 3.0 quattro AWD

Question type: Maintenance & Repair

2002 Audi A4 3.0 Manual.
Car starts fine in the morning. If I stop to get gas or stall it, the battery suddenly becomes very weak and barely has the energy to restart the car.
However, if I let the car then sit for 20 minutes, the battery regains enough energy to start the car.
I have no clue as to what is going on.

101,775

KenF answered 7 years ago

Get the alternator checked, it likely not putting out enough to keep battery charged. Any auto parts store can do these tests for free (at least in the USA).

Mark helpful

JErbes answered 7 years ago

The alternator was charging at 14.3 volts. Battery voltage drops to 8.5 when starting. For some unknown reason, the car is harder to crank when warm than when cold. Replacing battery fixed problem. Battery was probably 6 years old.

Mark helpful

Your Answer:

Battery very weak after driving any distance. Have to wait 20 min before restarting. 2 Answers

2002 Audi A4 3.0 Manual. Car starts fine in the morning. If I stop to get gas or stall it, the battery suddenly becomes very weak and barely has the energy to restart the car. However, if I let the c...

2002 Audi A4 3.0 quattro AWD

-

Maintenance & Repair
battery died - after jumping the car (1997 audi quattro A6) the sun roof opened and it will not close again - neither by dial nor by locking doors... Anyone have any clue? 2 Answers

All other windows work. We have tried everything in the manual. When we use the switch in the car there is a whirring sound but no movement at all.

1997 Audi A4

-

Maintenance & Repair
I have an audi A4 1999. Been running perfectly. Parked it for 3days with the battery head discharged due to heavy downpour of rain. On fixing it, it won't crank. Guys, any suggestion? 1 Answer

The plugs are new and the battery works well. Tried starting it till the battery discharged. It just wants to start with a puff sound coming froom the air flow meter.

1999 Audi A4 1.8T Sedan FWD

-

Maintenance & Repair
I have a 98 Audi a4 2.8 quattro that was running great and when I left the store it would not start until the third try and it rev'd up on its own and died out now won't start at all?? 2 Answers

It rev'd up to about 2 5 I threw it in gear and died out it rev'd up very weak so my first thought was something in the fuel system does anyone have a clue what this could be?

1998 Audi A4 2.8 quattro Sedan AWD

-

Maintenance & Repair
I have a complex problem. I have a 2011 Audi A4 with 43,000 miles, which I have loved. Two weeks ago I was driving to an appointment when I heard some loud beeps, and the rectangular square on my inst 5 Answers

I have a complex problem. I have a 2011 Audi A4 with 43,000 miles, which I have loved. Two weeks ago I was driving to an appointment when I heard some loud beeps, and the rectangular square on my inst...

2011 Audi A4

-

Maintenance & Repair

Used Audi A3

12 Great Deals out of 361 listings starting at $5,499

Used BMW 3 Series

54 Great Deals out of 1,186 listings starting at $3,495

Used Audi A6

8 Great Deals out of 115 listings starting at $4,888

Used Audi S4

5 Great Deals out of 96 listings starting at $15,800

Used Mercedes-Benz C-Class

72 Great Deals out of 1,381 listings starting at $4,499

Used Lexus IS

31 Great Deals out of 464 listings starting at $3,992

Used Honda Accord

44 Great Deals out of 960 listings starting at $2,995

Used BMW 5 Series

25 Great Deals out of 320 listings starting at $5,299

Used Toyota Camry

54 Great Deals out of 984 listings starting at $3,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.

Battery very weak after driving any distance. Have to wait 20 min before restarting.

2 Answers

Your Answer:

Shortcuts

Search Audi A4 Questions

CarGurus Experts

Find great deals from top-rated dealers

Related Models For Sale

Battery very weak after driving any distance. Have to wait 20 min before restarting.

2 Answers

Your Answer:

Related Questions