DB9 Powersteering Stopped
DB9 Powersteering Stopped
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Jay2333

Original Poster:

46 posts

170 months

Thursday 15th August 2019
quotequote all
Hi all,

Day 1 into AM ownership and it hasn’t gone quite to plan..

First of all the car is a low mileage55 plate DB9.

I’ve driven around 200 miles from London home and all has been well.

After getting home and taking another short trip out, i get back to the car to a strange wirring sound for about 2 mins. It then stops but so does the power steering.

I’ve limped the car the short journey home. Looking under the car there is a small fluid leak and there is no power steering fluid in the reservoir.

Being new to these can someone diagnose the issue and give me advice on best steps to fix it.

I’ll need to take care of this myself as opposed to warranty work.

Thanks!

paulrog1

1,235 posts

171 months

Thursday 15th August 2019
quotequote all
Looks like you have a power steering fluid leak.

I would remove the undertray,, get it on axle stands first. find the leak and replace the affected part. Maybe put some fluid in just to verify where the leak is coming from. Parts for Aston Martins can be really expensive.

Look on Google for any pointers on how to do this as i guess you can't go to a dealer or specialist.

I've never had to do this, if its just a hose then thats quite easy, hopefully it won't be the steering rack.

Good luck.


Jon39

14,962 posts

173 months

Thursday 15th August 2019
quotequote all

Sorry that you have had a bad start to your Aston Martin ownership.

Do you mention not a warranty matter, because your car does not have a warranty?
If you bought from a main dealer, warranty work can be carried out by any dealer, not just where the car came from.

My own car is a Vantage, but presumably the power steering will be the same.
I doubt that it is extra complicated, because (whisper it) the reservoir is identical to a Vauxhall Cavalier and several other ordinary vehicles.

I think I would put some fluid in the reservoir and a sheet of polythene in the floor under the engine. If it is leaking whilst stationary, you might see the position of where the leak is. Maybe it needs the engine to be run, to force the leak.

Good luck with it.


Edit - Paul was typing at the same time. Oops, I forgot about the undertray.






Edited by Jon39 on Thursday 15th August 21:48

8Tech

2,212 posts

228 months

Thursday 15th August 2019
quotequote all
Firstly, the whirring noise was the power steering pump aerating the low fluid level until it ran out of fluid altogether. Running the car further, apart from short periods for diagnosis, will severely damage the pump.

Add fluid to the reservoir and then get the front up in the air and remove all of the front undertrays. These will almost certainly be completely soaked in power steering fluid. Start the car and if the leak is not immediately obvious, then cycle the steering from lock to lock to bleed the system, it will then build full pressure and the leak should certainly be evident.

I would imagine a low mileage 14 year old car could have hose sealing issues where the hoses have hardened without regular use. Take a close look around the power steering cooler and the hoses where they connect underneath the reservoir, they use hose clips that cannot be "nipped-up" so if the hoses are hardened, they lose grip. You can either replace them with new worm drive (Jubilee) clips, or replace the hoses, (and still use worm drive clips anyway).

Replace the leaking part, whether its a hose, or just a sealing washer.

Edited by 8Tech on Thursday 15th August 22:23

Jay2333

Original Poster:

46 posts

170 months

Tuesday 20th August 2019
quotequote all
Thanks for the above, I’m a complete Aston rookie.

I took it in to a highly recommended (a few other performance car owners use them) and very local (0.5 miles) garage to diagnose. Turns out a valve in the PS system is leaking which needs replaced in addition to another piece of hose attached to it. Apparently they had some challenging talks with AM parts to identify what the part was due to lack of clarity on their site and also lack of part numbers.

Hoping this is changed in the next couple of days and we’ll be back on the road a few hundred quid lighter.

The annual service and MOT due in October! Fingers crossed.

EVR

2,251 posts

90 months

Wednesday 21st August 2019
quotequote all
Jay2333 said:
Thanks for the above, I’m a complete Aston rookie.

I took it in to a highly recommended (a few other performance car owners use them) and very local (0.5 miles) garage to diagnose. Turns out a valve in the PS system is leaking which needs replaced in addition to another piece of hose attached to it. Apparently they had some challenging talks with AM parts to identify what the part was due to lack of clarity on their site and also lack of part numbers.

Hoping this is changed in the next couple of days and we’ll be back on the road a few hundred quid lighter.

The annual service and MOT due in October! Fingers crossed.
Being sort of a newbie owner too (4 months now!), I suggest you to use https://www.scuderiacarparts.com to identify the parts numbers you might need. Then order from them or your preferred source.

paulrog1

1,235 posts

171 months

Wednesday 21st August 2019
quotequote all
I can email you the DB9 parts catalogue if you like.

Let me know your email.