1996 A8 4.2 PF - service - what parts are the best?

[Goran]

Here is some info from ElsaWin, looks like total quantity of brake fluid is 1l.
Please note, Audi dealer charges £99 for a full brake fluid flush (total, no additional VAT etc) which is not that bad considering they have the special machine which flushes out the ESP system (if your car has ESP).

Only use new brake fluid -B 000 700 A- (corresponds to US standard FMVSS 116 DOT 4).
Changing the brake fluid with brake charge and bleed equipment -VW 1238/B- → Chapter
Changing the brake fluid with brake charge and bleed equipment -V.A.G 1869- → Chapter
Changing the brake fluid with brake charge and bleed equipment -VAS 5234- → Chapter
Changing the brake fluid with brake charge and bleed equipment -VW 1238/B- or -V.A.G 1869-
Special tools and workshop equipment required
> Brake charge and bleed equipment -VW 1238-, -V.A.G 1238/1- or -V.A.G 1238/B-
> Upgrade kit and extraction unit -V.A.G 1869/4-

– Unscrew cap -1- from brake fluid reservoir.
– Unscrew plug -arrow- from brake fluid reservoir.
– Connect the extraction hose of -V.A.G 1869/4- to pipe in brake fluid reservoir.
– Use extraction hose included in -V.A.G 1869/4- to extract as much brake fluid as possible.
– Remove the extraction hose.
– Screw the plug onto the brake fluid reservoir.
– Connect -VW 1238/B- or -V.A.G 1869-, but do not switch on yet.
Vehicles with manual gearbox:
– Remove cap from bleeder screw on clutch slave cylinder.
– Open bleeder screw on clutch slave cylinder.
– Fit bleeder hose leading to brake fluid collector onto bleeder screw on clutch slave cylinder.
– Then switch on bleeder appliance and allow about 100 cm3 of brake fluid to drain out.
– Close bleeder screw and switch off bleeder appliance.
– Attach cap.
Continuation for all vehicles:
– Remove caps from bleeder screws.
Sequence for changing brake fluid in brake calipers:
1 - Front left-hand brake caliper
2 - Front right-hand brake caliper
3 - Rear left-hand brake caliper
4 - Rear right-hand brake caliper
– Remove caps from bleeder screws.
– Fit bleeder hose leading to brake fluid collector onto bleeder screw for relevant brake caliper.
– Switch on bleed equipment, open bleeder screw and allow about 200 cm3 of brake fluid to drain out.
Used brake fluid is pushed out of the system when new fluid is pumped in.
– Close bleeder screw.
– Perform the same procedure at the remaining bleeder screws.
Table - sequence for changing brake fluid / quantities

Front left 200 ml
Front right 200 ml
Rear left 200 ml
Rear right 200 ml
Total quantity → Note 1000 ml

1) including brake fluid extracted from brake fluid reservoir and fluid changed in hydraulic clutch system
– Switch off bleed equipment.
– Fit caps back on bleeder screws on brake calipers.
– Disconnect hose from brake fluid reservoir.
– Check pedal pressure and free travel (no more than 1/3 of total pedal travel).
– During the final test drive, make sure that at least one ABS-controlled brake application is carried out (with noticeable pulsing of brake pedal).
Changing the brake fluid with brake charge and bleed equipment -VAS 5234-
Special tools and workshop equipment required

> Brake charge and bleed equipment -VAS 5234-
Observe operating instructions for -VAS 5234-!

– Unscrew cap -1- from brake fluid reservoir.
– Unscrew plug -arrow- from brake fluid reservoir.

– Connect the extraction hose of -VAS 5234- to pipe -1- in brake fluid reservoir.
– Use extraction hose included in -VAS 5234- to extract as much brake fluid as possible.
– Remove the extraction hose.
– Screw the plug onto the brake fluid reservoir.

– Connect adapter -1- to brake fluid reservoir.
– Connect filling hose -2- included with -VAS 5234- to adapter.
Vehicles with manual gearbox:
– Remove cap from bleeder screw on clutch slave cylinder.
– Fit bleeder hose -1- leading to brake fluid collector onto bleeder screw on clutch slave cylinder.
– Switch on bleed equipment, open bleeder screw and allow about 100 cm3 of brake fluid to drain out.

– Close bleeder screw and fit cap back on.
– Switch off bleed equipment.
– Repeatedly depress the clutch pedal.
Continuation for all vehicles:
– Remove caps from bleeder screws.

– Connect bleeder hose -1- attached to collector bottle to bleeder screw (front left), switch on bleeder equipment, open bleeder screw and allow approx. 200 ml of brake fluid to flow out. Close bleeder screw.
Repeat the procedure on the other front side of the vehicle.
– Connect bleeder hose -1- attached to collector bottle to bleeder screw (rear left), open bleeder screw and allow approx. 200 ml of brake fluid to flow out. Close bleeder screw.
Repeat the procedure on the other rear side of the vehicle.
Table - sequence for changing brake fluid / quantities

Front left 200 ml
Front right 200 ml
Rear left 200 ml
Rear right 200 ml
Total quantity → Note 1000 ml

2) including brake fluid extracted from brake fluid reservoir and fluid changed in hydraulic clutch system
– Fit caps back on bleeder screws on brake calipers.
– Move filling lever on -VAS 5234- to position -B- (see operating instructions).
– Detach filling hose from adapter.
– Unscrew adapter from brake fluid reservoir.

– Check brake fluid level and correct as necessary.
– Screw cap onto brake fluid reservoir.
– Check pedal pressure and free travel (no more than 1/3 of total pedal travel).
– During the final test drive, make sure that at least one ABS-controlled brake application is carried out (with noticeable pulsing of brake pedal).

Please note:

A pressure of at least 2 bar is required for bleeding the ESP hydraulic unit. Therefore always check the pressure setting on the bleeding device.

First, all of the brake calipers are bled using the conventional method, but in a different sequence.

Afterwards the ESP hydraulic pump needs to be bled. This is done using the fault reader.

The fault reader is used to actuate the hydraulic pump for 10 s.

This actuation must only be carried out a maximum of 3 times in succession (approx. 30 sec.). Then the pump must be left to cool for at least 5 minutes.


POWER STEERING FLUID
I used this procedure on Audipages. The facelift D2 requires 2 litres, best to buy 3 just in case and for a bit of a flush.
http://www.audipages.com/Tech_Articl...r/psflush.html

[gti69]

Thanks for that! Brake flush is quite a lengthy procedure then! Need to check with my mate that own the garage if he can follow this.

Thanks for the info.

[gti69]

Seems like Brembo pads are out of stock everywhere in the UK.

Any other recommended makes? Bosch?

Thanks.
Tom

[gti69]

Quote from one seller:
Unfortunately we do not do Bosch, we have Apec (non branded brembo), Mintex or EBC.

In my opinion the Apec are the best value for money as they are very good quality and cheaper than the others.

Anyone used Apec?

Any feedback would be appreciated.

[gti69]

I was told by the seller that these should fit my A8

Front:
BOSCH BP402
http://www.ebay.co.uk/itm/3308664626...638%26_rdc%3D1

But I think this is more appropriate as the year matches - part number is the same though:
http://www.ebay.co.uk/itm/Bosch-FRON...item43b84ed6b4

Not sure about the rear ones though at all.
Rear

Guy says this should fit:
BOSCH BP783
http://www.ebay.co.uk/itm/3507047281...196%26_rdc%3D1

But I reckon this might be this one?
BOSCH BP617
http://www.ebay.co.uk/itm/Bosch-REAR...item43b846ae80

Any ideas how to check exact Bosch part numbers?

Thanks.

[ainarssems]

Best to search by Audi part number or cross-reference. Hope this helps:

[gti69]

Thank you.

I actually went on the online version of etka: http://www.partscats.com/

Part numbers I have found (similar to yours above):
FRONT: 4D0698151E
REAR: 4D0698451G

Now started to look for cross references - Bosch ones.

So:
FRONT
AUDI: 4D0698151E
BOSCH: 0 986 424 689
Which corresponds to: BP402
http://www.mister-auto.co.uk/en/brak...6!424!689.html
£35.33 - quite cheap?

REAR
AUDI: 4D0698451G
BOSCH: 0 986 494 059
Which corresponds to: BP783
http://www.mister-auto.co.uk/en/brak...l?KTypeNr=3881

Would that be right or shall I check with Audi Dealer for the confirmation of part numbers based on my VIN?

Cheers,
Tom

[ainarssems]

4D0698151E was discontinued on 01/10/2007, superseded by 4D0698151AD

4D0698451B discontinued 01/08/2007, superseded by 4D0698451G

[ainarssems]

Originally Posted by gti69

Thank you.

I actually went on the online version of etka: http://www.partscats.com/

Part numbers I have found (similar to yours above):
FRONT: 4D0698151E
REAR: 4D0698451G

Now started to look for cross references - Bosch ones.

So:
FRONT
AUDI: 4D0698151E
BOSCH: 0 986 424 689
Which corresponds to: BP402
http://www.mister-auto.co.uk/en/brak...6!424!689.html
£35.33 - quite cheap?

REAR
AUDI: 4D0698451G
BOSCH: 0 986 494 059
Which corresponds to: BP783
http://www.mister-auto.co.uk/en/brak...l?KTypeNr=3881

Would that be right or shall I check with Audi Dealer for the confirmation of part numbers based on my VIN?

Cheers,
Tom

The front ones are cheap but no mention of E or AD part numbers, does mention B which would be for 323mm. Like I said I think they are interchangeable but not 100% sure.

[gti69]

Thank you. Does your etka have vin check? If so could you please confirm for me if I provided you with the number?

Funny thing is that the cross reference for Bosch shows pads for 323mm discs and not 314.