D5 205 issue

[seanc]

Originally Posted by Clan

No , volvo have never said that , there are schedules suggested by volvo too as well just like those other manufacturers every 36000 miles if the car is used as a taxi or used under "Arduous" conditions ...or if you just want it changing , I don't think it is mandatory on any manufacturers service schedule , they all want to keep the cost of servicing down to keep the lease companies happy ,It will increase the cost of the alternate services a lot of course.
With the recent new Volvo service schedules of the last 4 years or so you can tailor your service to suit your needs , You and the service advisor need to be on the ball though. What is equally important is having the latest software , it is always being tweaked .
Thumping into D or 5th to 4th from about 2013-17 is known by the dealer they have a few bulletins to guide them on this the easiest is a re-adaption and software . .

My box seemed to get worse on 5th-4th after my 2018 service, but I thought it was just the box getting worn.
I need to take it in for a software update.
It also sometimes decides to be smooth and other times jerky, I don't know what might influence the changes.

[Clan]

Originally Posted by seanc

My box seemed to get worse on 5th-4th after my 2018 service, but I thought it was just the box getting worn.
I need to take it in for a software update.
It also sometimes decides to be smooth and other times jerky, I don't know what might influence the changes.

you should have had the software updates on the service if it was a volvo dealer . They know the complicated procedure to carry out to help your problem , it may be just adaption or new main shaft seals behind the torque converter in the gearbox .

[Clan]

Originally Posted by wagonwheels

Clan,your bound to know the common boost leaks on or between the turbos? Looking up the back of the engine there are two black plastic pipes.One has a sort of resonator on,the other is smaller.Are they bad for leaking on these? I just cant see up there even on a lift! I've changed a few xc90 d5 black turbo pipes when they crack and I wondered if this was similar? When speaking to Strathmore Volvo they commented on replacing the orange seals ?

The twin turbo system is not prone to leaks on the hard pipes , Only the rubber hoses on the intercooler can split .. , sometimes in places you can't see until the rubber pipes are removed . ..

The old xc90 pipes are different , the hard plastic one under the engine from turbo to intercooler can come off the turbo mainly due to the pipe's plastic retaining brackets being broken , this can cause the red silicon seal on the turbo end to break .

[wagonwheels]

Cheers clan.There really is not alot online about them having boost leaks so I guess I'm lucky! I smoke tested it but came back with only slight leaks on the intake(which I sorted) .

[seanc]

Originally Posted by Clan

you should have had the software updates on the service if it was a volvo dealer . They know the complicated procedure to carry out to help your problem , it may be just adaption or new main shaft seals behind the torque converter in the gearbox .

Thanks Clan.

The 2018 service was a Volvo dealer when it got worse, but this year I had it done at a local independent.
I've got access to old VIDA 2014D and the adaption seems to help, but not completely cure it, so unless another software upgrade will fix it, perhaps those seals need doing. Any rough idea how much that job costs?

[wagonwheels]

I thought I'd found the issue with the lower intercooler hose as it had what felt like a small RIP where the hose was tight against a mounting bracket. After removing it and fitting a new one it looks like it wasn't 100% though but still wise to change it.After spending hours checking pipework and the intercooler the hiss is still there at low rpms when coming on boost and after getting a second opinion on the performance I now know it's down on power/torque .Its edging towards a set of turbos by the look of it which I'll be mighty annoyed at! Should have stuck to my trusted 2005 xc

[Clan]

Originally Posted by wagonwheels

I thought I'd found the issue with the lower intercooler hose as it had what felt like a small RIP where the hose was tight against a mounting bracket. After removing it and fitting a new one it looks like it wasn't 100% though but still wise to change it.After spending hours checking pipework and the intercooler the hiss is still there at low rpms when coming on boost and after getting a second opinion on the performance I now know it's down on power/torque .Its edging towards a set of turbos by the look of it which I'll be mighty annoyed at! Should have stuck to my trusted 2005 xc

just get someone to rev the engine hard a few times and listen and feel for air escaping from pipes ,

[wagonwheels]

Done that Clan and had it smoke tested but nothing comes up.I wonder if it only shows up under hard boost and that's why the smoke test was ok. I do wonder if it's some of the hard plastic pipes connecting the turbos as there is oil misting around there and it only manifests itself up to about 2300rpm.
I'm now buying Vida/Dice to try to help matters as my Auto-com and snap-on only show so much.Its a real shame as its spoiling a nice car and I only have so much patience before it will get punted.I was looking forward to taking it to Volvo for the polestar map but at this rate its pointless

[wagonwheels]

After now buying vida now taken the car for a hard run.Putting the actual vs desired boost on a live graph I can see the boost isnt too far off from what's desired but takes a little longer to reach target but oddly sometimes wont make target? What also puzzles me is I noticed my coolant temp seems to run low and seemed to drop while idling in my drive(without the fans on) .Could a stuck thermostat cause issues for it (I cant even see the damn thing!!)

[tonys1966]

many years ago i had a t5 it lost boost etc when hot-fairly new car about 3 yrs old too

i worked out the coolant temp or stat were at fault and replaced both[iirc at the same bit/area of the engine]

a bit different with these new t/t cars but same principle-if your fuel consumption /mpg is low this would be an indicator also-stats on diesel staying open= higher fuel consumption