[RS3rick]

I think the concensus from this thread would be to get the filter done at the same time Rick and do the job properly.

Unlike Audi apparently.

How difficult is the filter to replace and what is the costing? Only reason I am paying for it myself is because I will have to pay the garage to put the car back to standard, then take it to Audi where it will sit for several days without anything happening. Then run the risk of them figuring out its been modified. Will just lay myself and get the car back within a few hours.

[Duke3D]

what symptoms did you experience before it gave up?

 

Basically no drive to the rear wheels exhibits as excessive front wheel spin even on part throttle most noticeable with some steering lock on, AKA when pulling out of a T junction.

 

Revs flare up quicker when pulling away in a straight line as less load on the drivetrain with only the fronts engaged. I can tell as the normal engine tone changed with the lighter load, sounded deeper somehow.

 

Other signs with all drive through the front is the car spearing off line with only medium throttle inputs during normal driving. Car just feels generally unsettled.

 

Surprising how much the haldex must kick in to spread the loads. Really noticeable when it doesn't.

[Duke3D]

How difficult is the filter to replace and what is the costing? Only reason I am paying for it myself is because I will have to pay the garage to put the car back to standard, then take it to Audi where it will sit for several days without anything happening. Then run the risk of them figuring out its been modified. Will just lay myself and get the car back within a few hours.

 

 Check the ebay links earlier in the thread Rick for prices of the filter. I haven't found any web links for anyone who has documented doing this on our car to know how much space there is to remove the filter & pump and then change the oil to get an idea on how much labour time you are looking at.

 

The pump & filter are just a couple of small headed bolts which have a low torque so theoretically not a difficult job with the right parts with the car in the air.

 

I'll try and get under mine at the weekend to scope it out.

 

Mines going in on the 19th for the pump to hopefully be replaced under warranty but I will be replacing the filter myself if there is space to do it jacked & up on stands straight afterwards.

 

I've also heard Audi don't replace the oil when they change the pumps if it looks OK. Well I will be doing the filter & new oil regardless.

Edited by Duke3D, 06 July 2016 - 07:34 PM.

[mrleow]

Here you go Duke.......
Look at this on eBay:https://www.ebay.co....tm/311649349450
NEW HALDEX GEN 4 FILTER REPLACEMENT KIT TTS/TTRS/RS3/GOLF R HALDEX.111358

That's the picture of my Gen 4 Haldex in my TTS. Posted this on TT forum and it ended up here.

http://www.ttforum.c...p?f=19&t=750313

[mrleow]

Crack open the cover and you will be greeted with this plastic spacer.



It's a b*tch to get it out and I ended up destroying the plastic. There is a small washer to take note of when removing the filter. Try to feel for it inside the housing if it does not drop out with the filter.

It's best recommended to get the replacement kit with this plastic spacer.

[T-800]

Sorry hope you don't mind

It was the only decent picture I could find to show everyone.......

Edited by T-800, 07 July 2016 - 11:25 AM.

[mrleow]

Internet is all about sharing. Cheers!

[JRS3]

I had loss of 4wd on my mk1, went into Audi under warranty replaced haldex pump, rear diff, haldex ecu and in the end it turned out to be transfer box.

[JRS3]

How difficult is the filter to replace and what is the costing? Only reason I am paying for it myself is because I will have to pay the garage to put the car back to standard, then take it to Audi where it will sit for several days without anything happening. Then run the risk of them figuring out its been modified. Will just lay myself and get the car back within a few hours.

heard of afew transfer boxes being fried on the ring mate...... mite not be just a pump

[RS3rick]

Had the pump, fluid changed today and the car drives much better.

[red14]

Back to symptoms and stuff, did anyone find that apart from the car being a total handful it was a bit of a learning experience?

 

Personally it gave me a wake up on how powerful 2WD / FWD cars used to handle (I owned one of the worst - MG Montego Turbo). And so I relearned to dole out the power more thoughtfully, and given how wet the West of Scotland has been recently that was a big ask. Taking care with the power also gave me understanding of the basic handling of the car in 2WD, which is very different from the 4WD and not particularly good, but I thought more entertaining.

 

Then I got it fixed and OMG when the tap was turned on full, what a shock ! Full bore in a straight line is something else, it's something you forget after a couple of weeks in 2WD.

 

Boy, 4WD and clever electronics do hide an awful lot and flatter the driver hugely.

 

Much respect to the engineers who put these things together and make the driving so safe.

(Despite making the odd f up on the design side)

[Duke3D]

Back to symptoms and stuff, did anyone find that apart from the car being a total handful it was a bit of a learning experience?

 

Personally it gave me a wake up on how powerful 2WD / FWD cars used to handle (I owned one of the worst - MG Montego Turbo). And so I relearned to dole out the power more thoughtfully, and given how wet the West of Scotland has been recently that was a big ask. Taking care with the power also gave me understanding of the basic handling of the car in 2WD, which is very different from the 4WD and not particularly good, but I thought more entertaining.

 

Then I got it fixed and OMG when the tap was turned on full, what a shock ! Full bore in a straight line is something else, it's something you forget after a couple of weeks in 2WD.

 

Boy, 4WD and clever electronics do hide an awful lot and flatter the driver hugely.

 

Much respect to the engineers who put these things together and make the driving so safe.

(Despite making the odd f up on the design side)

 

My Haldex is cutting in and out at the moment so i don't know what I'm driving half the time. The biggest thing I am noticing is a delay in pulling away quickly at times either due to wheel spin or the drive drain trying and failing to cut into Quattro. I've had a couple of brown trouser moments pulling on to roundabouts to nip in-between oncoming traffic.

 

Reminds me of the last 2WD car I owned, 2004 Cupra R but the hesitance on getting a quick getaway on that was due to turbo lag. I lost count of the number of times I crawled into the path of oncoming traffic on roundabouts screaming 'FFFF----ing move you barstewart' when you forgot to get the revs up before dropping the clutch.

 

I am surprised how much you notice the difference when the haldex isn't working so although Quattro is quoted as not being permanent 4-wheel drive it looks like it is in operation most of the time.

[T-800]

My Haldex is cutting in and out at the moment so i don't know what I'm driving half the time. The biggest thing I am noticing is a delay in pulling away quickly at times either due to wheel spin or the drive drain trying and failing to cut into Quattro. I've had a couple of brown trouser moments pulling on to roundabouts to nip in-between oncoming traffic.

Reminds me of the last 2WD car I owned, 2004 Cupra R but the hesitance on getting a quick getaway on that was due to turbo lag. I lost count of the number of times I crawled into the path of oncoming traffic on roundabouts screaming 'FFFF----ing move you barstewart' when you forgot to get the revs up before dropping the clutch.

I am surprised how much you notice the difference when the haldex isn't working so although Quattro is quoted as not being permanent 4-wheel drive it looks like it is in operation most of the time.

I remember having the same Duke......

It was night & day when the clutch pump packed up

Even accelerating on the motorway slip road meant the car was all over the place, traction control light having a complete fit

Just shows how efficient the quattro system is

[ScottB]

I had loss of 4wd on my mk1, went into Audi under warranty replaced haldex pump, rear diff, haldex ecu and in the end it turned out to be transfer box.

The transfer box can easily blow up if you use launch in the wet.
Basically the wet causes the wheel to spin for a second at a fair speed then you gain traction putting huge stress on the box.

[Gussman]

For the filter have a look here:

 

 

 

Yeah, it's in Russian and it's for a VW Tiguan but still Haldex Gen 4.

Appears they're activating Haldex pump using VCDS (or equiv) to help ease/push out the filter??

[Duke3D]

Ha you beat me to it. I watched this yesterday but my Russian is a bit vague (non existent) but it shows exactly where the pump, filter, drain & fill plugs are as this is a mirror of the layout on our cars.

[Duke3D]

So after a 2 week wait for an appointment at an Audi dealer the car went in on Tuesday and after 3 days of usual Audi hell I got it back today with a new pump fitted under extended warranty so back to 4 wheel drive.

 

They re-filled the Haldex unit with the same dirty oil that they drained out. I suspected they would as I have read somewhere Audi say to re-use the oil if it looks OK. 

 

Needless to say I will be ordering a filter and getting it booked into an independent Audi specialist garage to have an oil change & the filter fitted. I mentioned this to the service rep when I picked up the car today and he said 'oh you should have said we could have done that for you'. So after 3 days of having to put up with their BS i informed him that seeing as Audi don't have the filter in their parts list I fail to see how they could do the job! I then went on to say that if Audi did change the filter the pump probably wouldn't have failed in the 1st place!!!

 

I would have ago myself but after checking, unless the car is on a lift I think you will struggle to get decent access on standard ramps or jacked  to drain, get to the filter & fill with new oil.

 

But one thing I do know is that that is the last time my car goes anywhere near an Audi garage. I have the renewal for the extended warranty due in August but thats going straight in the shredder. Independant for me from now on. 

[Wheel-Monkey]

I've had my haldex pump, controller and rear diff all replaced. I'm still not 100% happy with the handling

All done under Audi warranty but that's just run out - so fingers crossed.

Looking at getting an after market warranty but I'm nervous about how much cover you'd actually get for your money.

[ade]

This is why I have just bought a new RS3, insurance based warranty is a minefield and repairing an RS3 is not cheap, rather than having a RS3 failure slush fund I put the cash into a new car

[Wheel-Monkey]

My kind of investment