Torque AJM 6-G

It is repeatedly stated that the 6-speed AJM transmission (Golf IV) has a torque capacity of 310 Nm. 'However, my operating manual states 285?'

What is correct now?

Volkswagen Golf IV.
AJM 115 hp
MJ 2001
4/2001

Hello, I also have the AJM engine in my Golf Variant. The owner's manual also states a torque of 285 Nm. However, models from 2001 onwards definitely have versions with Tip Tronic that have 310 Nm of torque. However, when the 285 Nm versions are put on a dynamometer, they often reach around 325 Nm and approximately 125 horsepower, because TDI engines typically produce significantly more power than their official ratings.

Hello,

I have a Golf IV with the AJM engine and a 6-speed transmission, first registered in 02/01, and in my owner's manual, it states 310 Nm.

Hello,

The AJM engine has 115 horsepower and 285 Nm of torque.
The AUY, which is the successor to the AJM, has 115 horsepower and 310 Nm of torque.

In the user manuals, the new motor is often taken into account during the transition period.

Bye.


Michael II.

Hello,

The AUY model was/is not available in the Golf.
And the AJM 6-speed transmission from the year 2001 definitely has 310 Nm of torque.

Hello,

That's unfortunately not correct.

AUY engine installation period: 01/2000 to 07/2001.

The AJM has 285 Nm of torque, not 310.
The fact that these motor values vary greatly is a different matter.

Bye.

Michael II.

Hey everyone,

So, there are AJM engines with 285 Nm and 310 Nm of torque.
To determine whether the number is 285 or 310, you need to know the device's control unit number. You can find a list of the part numbers and Nm values on tuneline.at -> Products, etc.
If you then click on the "PS" link, you will see a nice graphic of torque and power at the top (which strangely all look the same, only the X-axis is shifted ), but the original power values are correct.

Hello,

It seems highly unlikely to me that VW would specify two different torque values for the same engine code.
There are so many different engine codes (MKB) precisely because VW changes the MKB with every modification.

Bye.


Michael II.

Hi,

However, the same procedure is applied to the current 130 hp TDI engine in the A4.
You can get the A4 with either a 5-speed or a 6-speed transmission.
With the 5-speed transmission, you have a maximum torque of 285 Nm between 1700 and 2500 RPM.
and with the 6-speed transmission, it's 310 at 1900 RPM. Is it the same engine control unit (ECU) but with different engine control software or version numbers?

Hello,

My AJM engine, manufactured in September 2000, also specifies 310 Nm in the owner's manual.
The thing about the engine control unit (ECU) number is actually true. There are AJM engines with 285 Nm and 310 Nm of torque. Sometime during the 2001 model year, modified engine control units (ECUs) were installed.
I looked into it back then because I wanted to know exactly which version my AJM has.
And according to. The engine torque is 310 Nm.

Best regards.
zodiac65

Hello,

It may be true that the AUY engine was produced until 07/2001, but not in the Golf IV in Germany.
To my knowledge, the AUY engine was only available in the Passat, Sharan, and Alhambra models, but not in the Golf.
And again, my Golf is definitely an AJM model with 310 Nm of torque, manufactured in February 2001.

Hello,

Unfortunately, my information is different.
How do you know for sure that your AJM engine has 310 Nm of torque?

AJM
Manufacturing: 10.98>, D3 standard, 1.9 liter displacement.
85 kW at 4000 rpm, 285 Nm at 1900 rpm, compression ratio 18.0.

ARL
Manufacturing, 09:00, EU3 standard, 1.9 liter displacement.
110 kW at 4000 rpm, 320 Nm at 1900 rpm, compression ratio 19.5 [Edit Admin: 18.5].

ASZ
Manufacturing, 11.00>, EU3 standard, 1.9 liter displacement.
96 kW at 4000 rpm, 310 Nm at 1900 rpm, compression ratio 19.0 [Edit Admin: 18.5]

AUY
Manufacturing, 05.00>, EU3 standard, 1.9 liter displacement.
85 kW at 4000 rpm, 310 Nm at 1900 rpm, compression ratio 18.0.


If needed, I can also email you the original file.


Bye.

Michael II.

Hello Michael,

The information you provided about the compression shouldn't be correct. According to your data, the 150PD has a value of 19.5, while the 130PD has a value of 19.0.
"Certainly, the engineers at VW gave the 150 PD model a lower compression ratio. Otherwise, with the same engine block, the peak pressures would increase. (Although, 320 vs. 310 Nm isn't a huge difference.)" But the 150PD model operates at a higher boost pressure.


Best regards, Georg.

The ARL engine has a compression ratio of 18.5. Perhaps MichaelII simply made a typo.
Best regards, Hugo.

I just double-checked it again:

The values mentioned above are listed in all the documents. Values.