Difference between N47 and N47T

[Cornel]

Hi

Can someone tell me what's the difference between these two engines?

I can't seem to find any info on the N47T.

Thanks

*edit* Sorry if this is a dumb question

 

[freerider]

I was wondering the same, all I can find is that it was a technical update, but nothing on what was actually updated.

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[momo1]

is it no maybe just an upgraded turbo?

 

[freerider]

The T stands for technical update

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[momo1]

The T stands for technical update

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Duh , but what technical update?
engine internals or externals?

 

[freerider]

The T stands for technical update

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Duh , but what technical update?
engine internals or externals?

Read my past above. I don't know. And guessing is not a viable answer imho

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From what I can gather from online resources, the update was an attempt to address the timing chain issues with the N47.

 

[Cornel]

Also thought that it might be the timing chain issue that was sorted.

 

[Loom]

http://www.bmw-driver.net/forum/showthread.php?t=39216

 

[Ratslaaf]

One will make you cry, one will put a smile on your face.

N47 is the one plagued by timing chain stretching because of strain imposed by HPFP. They also like running bearings, there was a recall for these at some point in time. '08 to early '10 cars - known as the 130kW version

N47T is the updated one. '10 onwards, carried over to F series with some small modifications. These are pretty bulletproof and don't suffer (as far as I'm aware) from timing chain issues. It has a much better ECU as well - known as the 135kW version.

 

[Cornel]

One will make you cry, one will put a smile on your face.

N47 is the one plagued by timing chain stretching because of strain imposed by HPFP. They also like running bearings, there was a recall for these at some point in time. '08 to early '10 cars - known as the 130kW version

N47T is the updated one. '10 onwards, carried over to F series with some small modifications. These are pretty bulletproof and don't suffer (as far as I'm aware) from timing chain issues. It has a much better ECU as well - known as the 135kW version.

Thanks Ratslaaf. That's good to know! They didn't upgrade the gearbox by any chance to handle more torque:rollsmile:

 

[Ratslaaf]

Nope, afraid not hey.

 

[Bandile]

One will make you cry, one will put a smile on your face.

N47 is the one plagued by timing chain stretching because of strain imposed by HPFP. They also like running bearings, there was a recall for these at some point in time. '08 to early '10 cars - known as the 130kW version

N47T is the updated one. '10 onwards, carried over to F series with some small modifications. These are pretty bulletproof and don't suffer (as far as I'm aware) from timing chain issues. It has a much better ECU as well - known as the 135kW version.

What preventative maintenance can one do to prevent the timing chain from stretching? Is there an upgraded HPFP maybe? And the bearings :blueCry:?

And can the ECU be tweaked to the same spec as the better one?

 

[Ratslaaf]

There was a campaign for some N47 engines, not sure if it's still valid. Not all were affected to be honest.

Nope, there's a massive difference between the two ECUs. Your car runs piezo injectors and the later ones were pintle injectors, totally incompatible, so is the wiring harness.

All this being said, there's a lot of N47's on the road. Yes there were some issues but I am known to sometimes make a storm in a teacup :rollsmile:

 

[Cornel]

One will make you cry, one will put a smile on your face.

N47 is the one plagued by timing chain stretching because of strain imposed by HPFP. They also like running bearings, there was a recall for these at some point in time. '08 to early '10 cars - known as the 130kW version

N47T is the updated one. '10 onwards, carried over to F series with some small modifications. These are pretty bulletproof and don't suffer (as far as I'm aware) from timing chain issues. It has a much better ECU as well - known as the 135kW version.

What preventative maintenance can one do to prevent the timing chain from stretching? Is there an upgraded HPFP maybe? And the bearings :blueCry:?

And can the ECU be tweaked to the same spec as the better one?

ECU can't be tweaked to the newer ones spec but you can do SW on it.

 

[Bandile]

One will make you cry, one will put a smile on your face.

N47 is the one plagued by timing chain stretching because of strain imposed by HPFP. They also like running bearings, there was a recall for these at some point in time. '08 to early '10 cars - known as the 130kW version

N47T is the updated one. '10 onwards, carried over to F series with some small modifications. These are pretty bulletproof and don't suffer (as far as I'm aware) from timing chain issues. It has a much better ECU as well - known as the 135kW version.

What preventative maintenance can one do to prevent the timing chain from stretching? Is there an upgraded HPFP maybe? And the bearings :blueCry:?

And can the ECU be tweaked to the same spec as the better one?

ECU can't be tweaked to the newer ones spec but you can do SW on it.

I will get there... Eventually :tiptoe:

 

[BadBoy23]

sorry for the noob question, is this the motor for the 320d and how will u know which motor you have.

thank you

 

[ahmad911]

sorry for the noob question, is this the motor for the 320d and how will u know which motor you have.

thank you

Type in your vin here https://www.bmwvin.com/
Will give you the required info

 

[BadBoy23]

thank you