Main Dealer only wants to replace one bush - DB9
Discussion
2007 DB9 in for service at main dealer. 2 year warranty just about to run out.
One of the front wheel bearings had gone, so they tried to replace under warranty.
Bearing was seized so they has to knock it of and in the process bent a suspension arm. (All over the phone so apologies of the description is not all that).
No problem, warranty (AM) will cover the new suspension arm.
The dealer mentioned on the phone they were also changing a bush. It seems the bush is integral to the arm.
I said .... you can change one bush without changing the other. Nice man, went off to ask, engineer says this is OK as the bush is of high quality and AM factory guidance is that changing one side is OK.
My view - you should change both sides.
Would appreciate the forum view.
One of the front wheel bearings had gone, so they tried to replace under warranty.
Bearing was seized so they has to knock it of and in the process bent a suspension arm. (All over the phone so apologies of the description is not all that).
No problem, warranty (AM) will cover the new suspension arm.
The dealer mentioned on the phone they were also changing a bush. It seems the bush is integral to the arm.
I said .... you can change one bush without changing the other. Nice man, went off to ask, engineer says this is OK as the bush is of high quality and AM factory guidance is that changing one side is OK.
My view - you should change both sides.
Would appreciate the forum view.
)If the bushes are both ok, then they should only have to replace the one they knacked - then you'll be back to both being ok.
If they're both knacked, then you should pay them for changing the other one. Then you've got a job done that you were going to have done anyway for half the cost.
If they're both knacked, then you should pay them for changing the other one. Then you've got a job done that you were going to have done anyway for half the cost.
The passenger (kerb) side front always seems to take more of a pounding than the offside, wheel bearings ,ball joints, bushes and shock absorbers seem to fail on that side first.
The offside parts may indeed last quite a bit longer , depending on how rough the roads are in your area, but I agree its preferable to change the opposite side at the same time, especially on a car capable of the high speeds of the AM.
The offside parts may indeed last quite a bit longer , depending on how rough the roads are in your area, but I agree its preferable to change the opposite side at the same time, especially on a car capable of the high speeds of the AM.
I would want both bushes changed, only a 10 minute job.
But I would be very concerned on how they managed to bend a suspension arm.
The bearing is bolted into the upright with 4 bolts and should just need tapping out.
To bend an arm I don't think you could exert enough force with a hammer they have used a hydraulic ram to do that.
They should have taken the upright out and put it in a press to do it properly but that means more work.
I would insist on an independent check that they have not bent or distorted anything else.
This is sheer brute force and ignorance here.
But I would be very concerned on how they managed to bend a suspension arm.
The bearing is bolted into the upright with 4 bolts and should just need tapping out.
To bend an arm I don't think you could exert enough force with a hammer they have used a hydraulic ram to do that.
They should have taken the upright out and put it in a press to do it properly but that means more work.
I would insist on an independent check that they have not bent or distorted anything else.
This is sheer brute force and ignorance here.
yourtheguy said:
I would want both bushes changed, only a 10 minute job.
But I would be very concerned on how they managed to bend a suspension arm.
The bearing is bolted into the upright with 4 bolts and should just need tapping out.
To bend an arm I don't think you could exert enough force with a hammer they have used a hydraulic ram to do that.
They should have taken the upright out and put it in a press to do it properly but that means more work.
I would insist on an independent check that they have not bent or distorted anything else.
This is sheer brute force and ignorance here.
Completely agree. I've just changed the nearside front bearing on my Vanquish. Required a bit of heat and a bit of persuasion. I've had 40 + years in engineering and I know what to do. Maybe the yop's trainee didn't. BUT your not paying for the YOP's trainee are you!!!!But I would be very concerned on how they managed to bend a suspension arm.
The bearing is bolted into the upright with 4 bolts and should just need tapping out.
To bend an arm I don't think you could exert enough force with a hammer they have used a hydraulic ram to do that.
They should have taken the upright out and put it in a press to do it properly but that means more work.
I would insist on an independent check that they have not bent or distorted anything else.
This is sheer brute force and ignorance here.
Agree with the 2 above, how the hell would you damage a suspension arm doing the job properly?
The front wheel bearings are a Generation 3 type bearing where the hub and bearing all come pre-assembled in a housing. This assembly is bolted into the upright with 4 bolts. Its an expensive way to supply a bearing but a doddle to fit, 4 bolts and its out. To bend the arm, the hub carrier must have been severely overstressed, or the suspension was lowered to the ground, disconnected without the wheel installed.
There are no replaceable bushes on either the upper or lower arms, they both come pre-onstalled with the bushes, so what bush are they talking about.
As for as the bushes are concerned, are they true "bushes", ie rubber cushioned, or are they spherical balljoints that look like bushes?
If they were rubber bushes, I would replace both, spherical "bushes" are either good, or knackered so there is no real reason to replace them until they fail, they do not gradually wear like rubber bushes. Spherical "bushes" wear VERY quickly when they start to fail whereas the rubber ones will start to deteriorate the day you fit them.
The front wheel bearings are a Generation 3 type bearing where the hub and bearing all come pre-assembled in a housing. This assembly is bolted into the upright with 4 bolts. Its an expensive way to supply a bearing but a doddle to fit, 4 bolts and its out. To bend the arm, the hub carrier must have been severely overstressed, or the suspension was lowered to the ground, disconnected without the wheel installed.
There are no replaceable bushes on either the upper or lower arms, they both come pre-onstalled with the bushes, so what bush are they talking about.
As for as the bushes are concerned, are they true "bushes", ie rubber cushioned, or are they spherical balljoints that look like bushes?
If they were rubber bushes, I would replace both, spherical "bushes" are either good, or knackered so there is no real reason to replace them until they fail, they do not gradually wear like rubber bushes. Spherical "bushes" wear VERY quickly when they start to fail whereas the rubber ones will start to deteriorate the day you fit them.
Edited by 8Tech on Friday 21st November 17:36
Gassing Station | Aston Martin | Top of Page | What's New | My Stuff