[Stebro]

Hey there.

After arriving at my destination and having to leave 15 minutes later, I started the 2005 2.5TDi Treg and it struggled to start.

To add. There is a new, and correct, battery that is a couple of months old. And it recently came back from mechanical shop that installed a new diesel injector.

On the first swing it sounded like it was about to stop swinging. Then the car started. Then came the picture below, immediately after it started.

Unfortunately my manual does not show what this is for.

Any ideas?

Thank you.

 

[Calcifur83]

try here and here and also maybe here

A couple of different threads. Was there or are there any error messages displayed on the dashboard, what about the hi/lo transfer knob, any flashing lights???

Sounds like a diff error.

 

[Stebro]

Off course.

I forgot to mention the flashing knob to the transfer knob. But no error message that I could see or noticed though.

Thanx for the links.

Looks like I might have a stepper issue. Since the battery is new.

Will get a scan to confirm.

Thanx again.

 

[Calcifur83]

That seems to match with what is being mentioned in those other threads. I only skimmed through them, there may be some details in there that can point you to a resolution.

Let us know how you get on. [emoji1303][emoji1694]

Sent from my Pixel 6 Pro using Tapatalk

 

[Stebro]

Will do.

Thanx again. 👍

 

[Stebro]

Will do.

Thanx again. 👍

Update:

According to VW, I do not have a stepper motor. Sigh.

Will have to scan.

Update:

Did a scan and found the below. What it means is beyond me.

Read the following from Ross-Tech Wiki... (00532 - Ross-Tech Wiki)

 

[SaVAGeSoot]

What it means is beyond me.

Let's back it up.
What is the condition of the battery? You said

On the first swing it sounded like it was about to stop swinging

.... so that sounds like it didn't have sufficient juice.
Put a meter on it.
Do a voltage drop test on the starting circuit.
Forget about the knob or the transfer case for now.... they have nothing to do with cranking or starting the engine.

 

[Stebro]

Let's back it up.
What is the condition of the battery? You said

.... so that sounds like it didn't have sufficient juice.
Put a meter on it.
Do a voltage drop test on the starting circuit.
Forget about the knob or the transfer case for now.... they have nothing to do with cranking or starting the engine.

Thanx for the feedback.

Will check it and report back.

Update:
The starting process uses 2.61 Volts.
The battery rests at 12.5 Volts.
Starting the car will drop the reading to 9.89 Volts.
After the car is started, the readings indicate 14.40 (Fluctuating slightly.)

 

[jeffnhiscars]

your cranking Voltage is a bit low but note new batteries aren't always perfect. SOP with any voltage related code is to clear it and see if it comes back.

besides the warning light we're there any actual symptoms once it started ?

 

[Stebro]

Thanx for the feedback.

Will check it and report back.

your cranking Voltage is a bit low but note new batteries aren't always perfect. SOP with any voltage related code is to clear it and see if it comes back.

besides the warning light we're there any actual symptoms once it started ?

Nope. Drove normally.

Did it again yesterday when I stopped at the shops. When I left 10 minutes later it did it again.

 

[jeffnhiscars]

Nope. Drove normally.

Did it again yesterday when I stopped at the shops. When I left 10 minutes later it did it again.

its not clear to me if you cleared the code then had it come back or does it just come and go ?

 

[Stebro]

its not clear to me if you cleared the code then had it come back or does it just come and go ?

Yeah. I have cleared the codes. And it seems so come and go. Don't know why and it does not make any sense.

O well.

 

[SaVAGeSoot]

Search my posts. I've shared documentation on how to voltage drop test the starting circuit. To me, it sounds like you have a flaky connection or wire that shorts out once it overheats.

 

[SaVAGeSoot]

https://static.nhtsa.gov/odi/tsbs/2020/MC-10174460-0001.pdf

 

[Viking Lady]

How old is your “new” battery? Many places keep a stock of various batteries for years sitting in their warehouse and sell them as “new” You may have purchased an old “new” battery.

 

[Stebro]

Search my posts. I've shared documentation on how to voltage drop test the starting circuit. To me, it sounds like you have a flaky connection or wire that shorts out once it overheats.

Thanx. Will take it to the shop so they can have a look.

https://static.nhtsa.gov/odi/tsbs/2020/MC-10174460-0001.pdf

This is very handy. Thank you.

How old is your “new” battery? Many places keep a stock of various batteries for years sitting in their warehouse and sell them as “new” You may have purchased an old “new” battery.

Bought the battery in March 2023. At that time the battery was already a month, or so, old.

 

[jeffnhiscars]

IME virtually all new batteries have a sticker w a mfg date. Last one I bought had a 3/22 sticker...and I bought it in 2/22 so,it hadn't actually been made yet.

now THATs a fresh battery !!