Xc90 T8 throttle latency / drive delay issue

[Philip Fisher]

Originally Posted by MaDProFF

I wonder if they have uprated the ERAD Transmission? or they still fitting the same as keeps failing?

Not wishing to temp fate but at 85k miles mine has never missed a beat....

[AndyGoodson]

Hi, any idea how big job the erad cam ring replacement is and or the likely cost please?

[yeoman]

Originally Posted by jshack

Thanks for everyone's feedback on this and apologies for the late response. It went back to the dealer a couple of times - first for a software update which did nothing and secondly for an ERAD transmission replacement which took about 3 days and totally resolved the issue.

With hindsight I probably mis-described the problem. The transmission on the electric motor was slipping which, like clutch slip in a regular car, resulted in me putting more power down with no forward drive, such that the extra revs were causing the petrol engine to kick in.

Given that the technician immediately diagnosed the problem, there was no quibble about its replacement and i've seen T8's in the workshop perviously with no rear axles, I'm guessing this is a pretty common fault.

Mine failed at ~35,000 miles so if anyone's experiencing any noticeable delays/hiccups in drive I'd recommend getting this checked out asap certainly before the warranty expires as with the labour alone this would be a very expensive job.

Thanks
James

Can you kindly find out from your dealer how much this would have cost out warranty?
The reason I am asking is because mine which has 41K miles on it and is now out of warranty has started to act like yours did(intermittently).

I currently have no error messages and nothing untoward was picked up at the routine service in May.

My lease is up in 8 months time.

[Philip Fisher]

Originally Posted by yeoman

Can you kindly find out from your dealer how much this would have cost out warranty?
The reason I am asking is because mine which has 41K miles on it and is now out of warranty has started to act like yours did(intermittently).

I currently have no error messages and nothing untoward was picked up at the routine service in May.

My lease is up in 8 months time.

Is it not the lease company's problem?

[yeoman]

Originally Posted by Philip Fisher

Is it not the lease company's problem?

Unfortunately,I dont have a service agreement as part of my lease and the 3yr warranty period is over.

[Philip Fisher]

Originally Posted by yeoman

Unfortunately,I dont have a service agreement as part of my lease and the 3yr warranty period is over.

That is not a good place to be in then. I always think that a lease only really works well with a warranty and service plan.....

[yeoman]

Originally Posted by Philip Fisher

That is not a good place to be in then. I always think that a lease only really works well with a warranty and service plan.....

Error will not be repeated.

[Nodge1972]

Was suffering from the very same delay / hesitation....and it is now in the garage with a full ERAD system replacement (£3,600 just for the part) and the rear axle may need replacing. If this starts happening to your car, get it in and don't accept it back until something has been resolved.

[DVDV]

I’m driving 2017 XC90 T8 and I’m having the same issue since about 2 weeks. It started out of nowhere.
The car usually accelerates from standstill on battery power and it nothing happens until I floor it and then the petrol engine starts up and it takes off. There are no warning lights that come on and once it’s driving I can drive on battery only without any problems. It’s booked for next week so hopefully they can find the issue. Looks like it’s the ERAD issue that some of you mentioned.
I’ve got an extended warranty, which hopefully covers the issue.

I’ll let you guys know what the technician said when I’m picking it up.

[kentt4]

Althought in UK
I got ours fixed last week, the car is XC90 T8 , Dec'15 with 101500 miles
but has full Volvo history...
Volvo agreed to pay 100% of the £3700 repair cost