Loud persistent squeal, 2017 XC90 T8

[bremner27]

Originally Posted by Philip Fisher

You been to the dealer yet? Good news or bad?

You beat me to it mate, was going to post an update tonight as I got the car back today….

So I drove it to Warrington Volvo on Saturday, made it there in pure electric mode which I was impressed with, the tech came out to have a listen but as you might have guessed it wasn’t making the noise, typical.

I left the car there along with a link to the video and was promised it would be looked at on Tuesday, they had time on Monday and diagnosed the issue as a faulty top oil breather, £417 including inspection, part and labour.
Not a bad outcome considering the things I’ve read but would obviously still like to have the £417 in my bank. The health check also flagged up issues with discs and pads as well as two new tyres which considering it was MOT’d in Feb before I bought it and didn’t even show them as advisories seems a bit suspect.

I can definitely recommend Warrington Volvo, communication was excellent and did exactly what they said they would do when they said they would do it, can’t ask for anymore really.

Anyway car is back now and running like it was before nice and quiet, while I’ve got you could I just ask a couple of questions? I bought the first xc90 I test drove so I’ve nothing to compare it too…

When the battery runs out when I’m driving around I can feel the engine change as if it starts to charge the battery, I can really feel the engine vibrating through the car, is this normal?

Last question, the car feels like it really really wants to move! When I’m at the lights with my foot on the brake it’s like it wants to take off and I’m having to firmly hold the brake pedal to stop it from moving, compared to other autos I’ve driven, in them I’m just lightly holding the brake and the car stays stationary, again is this normal that it wants to take off?

Cheers, Andy.

[Philip Fisher]

Originally Posted by bremner27

You beat me to it mate, was going to post an update tonight as I got the car back today….

So I drove it to Warrington Volvo on Saturday, made it there in pure electric mode which I was impressed with, the tech came out to have a listen but as you might have guessed it wasn’t making the noise, typical.

I left the car there along with a link to the video and was promised it would be looked at on Tuesday, they had time on Monday and diagnosed the issue as a faulty top oil breather, £417 including inspection, part and labour.
Not a bad outcome considering the things I’ve read but would obviously still like to have the £417 in my bank. The health check also flagged up issues with discs and pads as well as two new tyres which considering it was MOT’d in Feb before I bought it and didn’t even show them as advisories seems a bit suspect.

I can definitely recommend Warrington Volvo, communication was excellent and did exactly what they said they would do when they said they would do it, can’t ask for anymore really.

Anyway car is back now and running like it was before nice and quiet, while I’ve got you could I just ask a couple of questions? I bought the first xc90 I test drove so I’ve nothing to compare it too…

When the battery runs out when I’m driving around I can feel the engine change as if it starts to charge the battery, I can really feel the engine vibrating through the car, is this normal?

Last question, the car feels like it really really wants to move! When I’m at the lights with my foot on the brake it’s like it wants to take off and I’m having to firmly hold the brake pedal to stop it from moving, compared to other autos I’ve driven, in them I’m just lightly holding the brake and the car stays stationary, again is this normal that it wants to take off?

Cheers, Andy.

So firstly glad it was not more serious.

Regarding the car switching from elec to ICE when the battery is depleted, it would be normal to hear the engine and if you are at a low speed I think it will be reasonably obvious the engine has started. As for the vibrations it is difficult to ascertain as this is subjective, but a completely depleted battery will mean the engine starts and runs at higher revs to charge the battery so this will be noticeable.

Regarding creep, are you using auto hand brake? This is the a button next to the handbrake. Switch that on and you should be good.

Finally disks and pads are not too difficult if you are reasonably handy. I buy genuine Volvo stuff at a discount from TMS in Coventry and fit myself. You might also find the disks are all OK. Dealers tend to recommend disks just because there is a bit of a lip and they haven't even measured the thickness. If you buy a vernier caliper or micrometer you can measure disk thickness and maybe only need the pads.

[bremner27]

Originally Posted by Philip Fisher

So firstly glad it was not more serious.

Regarding the car switching from elec to ICE when the battery is depleted, it would be normal to hear the engine and if you are at a low speed I think it will be reasonably obvious the engine has started. As for the vibrations it is difficult to ascertain as this is subjective, but a completely depleted battery will mean the engine starts and runs at higher revs to charge the battery so this will be noticeable.

Regarding creep, are you using auto hand brake? This is the a button next to the handbrake. Switch that on and you should be good.

Finally disks and pads are not too difficult if you are reasonably handy. I buy genuine Volvo stuff at a discount from TMS in Coventry and fit myself. You might also find the disks are all OK. Dealers tend to recommend disks just because there is a bit of a lip and they haven't even measured the thickness. If you buy a vernier caliper or micrometer you can measure disk thickness and maybe only need the pads.

Thanks mate, must be me over thinking it with the charging. I’ll try the auto handbrake and see if that makes a difference.

I have done discs and pads in the past on my V50 but the electric handbrake and the air suspension put me off a bit.
They pulled the discs as they are apparently heavily corroded and they said there’s a bit of life in the pads yet but while you are there it would make sense.

[Fibrous]

Good to know you got it sorted.
I just came across this video which might help others diagnose -

https://www.youtube.com/watch?v=I90Sxir3ABQ