Hello My fellow members,

I have a subaru impreza sti 2.5 hawkeye on a 57plate, i have had it for around 6 months now. can anyone tell me if the following is the norm, when i reverse of my drive etc at low speeds i hear a kind of klunking/knocking noise from the back of the car, it feels as if something is locking or some kind of friction for a second, the car drives buetifully and i have had no probs with it. I have taken it to subaru and they have siad it is the diff and it is perfectly normal, they siad the wr1 and the hawkeye diffs lock up at low speed, i aint to sure.

Can anyone shed any light on this and let me know if they encounter it with there hawkeye.

Cheers Boys.

 

Take the A-DCCD out of auto and set to the bottom green, then make slow manouvers (back forward and turning), shouldnt hear anything, with the a-dccd it can still be slightly forward and that can wind the diff up, common trait of the a-dccd in auto.

Tony

 

My Hawkeye STI does this and so did my previous WR1.

 

thanks for that boys thats put my mind at ease becuase my warranty runs out in 3months, i thought suburu were just trying to thob me off by telling me it was ok. Tony i will take it out of auto and let you know how i get on. Is it right to say when its in lock up mode is it 50:50 split between front and back.

thanks agian lads

 

yes the diff is a real bitch in the hawkeye, as said, manual full rear diff setting when reversing


its much better improvement in the hatch

i used to cringe sometimes when doing a 3 point turn and forgeting to swtich the dccd to manual lol

 

I understand that this is a common trait in all the Wr1's - mine included

L

 

Rear Shockers, my old 06 STI used to knock when i reversed up the drive, get someone else to drive it and sit in the back and listen to see if you can tell where its coming from. The service manager at my dealer even pulled the through load flap down amd stuck his head in the boot to try and decide which shock it was.

 

have the same with mine, before reversing pull the hand brake on by one click so that the handbrake light comes on-this frees the diffs and the knocking will disapear and is easier than playing around with the dccd ****.
cheers

 

Interesting, will try this as mine is exactly the same too.

 

when it makes the noise is it causing any damage? got an 06 type D STi about a month ago, and makes this noise, thanks for info, at least now know what it is

 

Its just the diff winding up, doesnt do any damage, its what diffs do

Tony

 

Once again the search facility comes up trumps!

I was going to ask this question as my 57 plate STI makes strange noises when reversing too. I'll try changing the settings tomorrow

Technically (but in simple speak) what is happening when the 'clonking' noise occurs and why does changing the setting resolve it?

 

aye mine does this etc
the original owner warned me about it and i thought id brought a car with a fecked diff heh
but as per his word its all in the user manual

it recommends for any tight manoeuvres (ak Carpark work) to turn the diff to green bottom

 

In basic terms your dccd adds more resistance, with no resistance there is free movement, the more resistance the more the diff will try to compensate with its opposite number so thats what your hearing.

Tony

 

Cheers Tony

 

Its all in the manual, perfectly normal

 

I'm pleased I came across this thread I've got the same knocking on my 07 Sti. My mind at ease now lol