edge130
Veteran Member
Had to replace the battery on the 2009 Jetta tdi today.
Saturday it would't turn over.
Thought something was left on, put the battery charger on it, noticed the ammeter stayed up on high end, never really tapering downward, as it would on a discharged, but healthy battery.
Took off the charger and the voltage on the battery measured 10.7v
I was just barely able to start the car.
Voltage reading with engine running was 13.9v
Drove car around area returned and again measured 10.7v
I figured the dealer would be a grave mistake, but the parts guy told me the new battery would be $115.00
I thought that was not that bad a price to pay for a new battery.
The old battery was Enertec 1J0 915 105 AF
New battery was Enertec 000 915 105 DG
My concern was that any other brand of new battery might not fit inside the fabric heat shield that surrounds the battery and has a flap that overs the top of the battery.
The new battery was the same size.
I thought replacing the battery would be difficult, but wound up not so bad at all.
I removed the negative and positive leads.
I found that by just moving a small hose before the mass air sensor, I was able to get a 13mm socket in there with a large extention. I did not have to remove the air filter box, nor open the top of the air filter box. I loosened the bolt till it was free, then was able to use a magnetic pick up tool to retrieve the bolt and hold down bracket.
I lifted the battery out, lifted off the fabric heat shield.
What I noticed here for future reference, it appears that you could remove the battery tray and then have access to the DSG filter. I don't see the need to take the air filter box off the car to access the DSG filter then.
I cleaned off the battery tray, placed the battery in, was able to place the hold down bracket in place. I used the old trick of adding a piece of thick paper around the bolt head to make a tight fit in the socket. This way you don't loose the bolt when inserting it and tightening it.
Slid the fabric heat shield over the new battery, replaced the cables and was back in business.
When I turned in the battery for the core deposit, the parts lady told me the battery had a 5 year warranty, 2 years free replacement, 3 years pro rated.
Saturday it would't turn over.
Thought something was left on, put the battery charger on it, noticed the ammeter stayed up on high end, never really tapering downward, as it would on a discharged, but healthy battery.
Took off the charger and the voltage on the battery measured 10.7v
I was just barely able to start the car.
Voltage reading with engine running was 13.9v
Drove car around area returned and again measured 10.7v
I figured the dealer would be a grave mistake, but the parts guy told me the new battery would be $115.00
I thought that was not that bad a price to pay for a new battery.
The old battery was Enertec 1J0 915 105 AF
New battery was Enertec 000 915 105 DG
My concern was that any other brand of new battery might not fit inside the fabric heat shield that surrounds the battery and has a flap that overs the top of the battery.
The new battery was the same size.
I thought replacing the battery would be difficult, but wound up not so bad at all.
I removed the negative and positive leads.
I found that by just moving a small hose before the mass air sensor, I was able to get a 13mm socket in there with a large extention. I did not have to remove the air filter box, nor open the top of the air filter box. I loosened the bolt till it was free, then was able to use a magnetic pick up tool to retrieve the bolt and hold down bracket.
I lifted the battery out, lifted off the fabric heat shield.
What I noticed here for future reference, it appears that you could remove the battery tray and then have access to the DSG filter. I don't see the need to take the air filter box off the car to access the DSG filter then.
I cleaned off the battery tray, placed the battery in, was able to place the hold down bracket in place. I used the old trick of adding a piece of thick paper around the bolt head to make a tight fit in the socket. This way you don't loose the bolt when inserting it and tightening it.
Slid the fabric heat shield over the new battery, replaced the cables and was back in business.
When I turned in the battery for the core deposit, the parts lady told me the battery had a 5 year warranty, 2 years free replacement, 3 years pro rated.
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