Should my car start?

[Supernova190188]

I have only just got home, have a 2015 xc60 d5 which started and then cut out, it’s shredded the auxiliary belt (again), however been a pain as car will not fire up at all now, it will turn over but not start (so thinking it can’t be the cambelt) I’m crossing my fingers that this is some sort of Volvo safety thing? Although a bit dull if so as you can only get the gear selector to move while turning car over on the push button and then pressing again to stop.
If not some form of safety thing stopping the car being started, I have much bigger issues but that is a job for tomorrow after some sleep.

[daqinggregg]

Been away for a long time, have we Sir!

[Whataguy]

It used to be a common issue in Volvos that when the auxiliary belt went it could also take out the cam belt too.

My last Volvo they were both replaced at the same time. Used to be every 50k miles IIrC.

[itcaptainslow]

Bits of auxiliary belt may have found their way behind the cambelt cover and made it jump a few teeth, or worse…

I’d be pulling the cambelt covers, checking the condition of the cambelt, idlers and tensioner, plus the timing, before going any further with trying to start it.

[Jim H]

Also,

Any evidence of it turning over, doesn’t automatically indicate the timing belt hasn’t snapped.

Crank and cams may no longer be connected.

[GreenV8S]

Jim H said:

Also,

Crank and cams may no longer be connected.

... except perhaps via the pistons and valves.

[TwinKam]

GreenV8S said:

Jim H said:

Also,

Crank and cams may no longer be connected.

... except perhaps via the pistons and valves.

Ooof!

[Jim H]

TwinKam said:

GreenV8S said:

Jim H said:

Also,

Crank and cams may no longer be connected.

... except perhaps via the pistons and valves.

Ooof!

Really hard to diagnose from the vague description from OP this morning about what was actually happening.

But the assumption there was no concern regarding the timing belt - as it was ‘turning over’.

I have zero experience of Volvo lumps and whether they are “interference” configured?

You can probably crank away to your hearts content and not knowing, come to the conclusion “yup it’s still turning, it’s not the timing belt”

Whilst mashing the important stuff.

Anyway OP. Have you had any luck?

[omniflow]

A bit late to the party.

I had a 2007 Mondeo 2.5T which has a 5 cylinder Volvo petrol engine. The Aux belt snapped. Replaced the Aux belt and tensioner - still wouldn't start. Turned over just fine, but wouldn't start.

Turns out that the Aux belt snapping caused the cambelt to jump a couple of teeth. The valves collided with the pistons resulting in bent valves and no compression.

No idea if this applies to diesel engines (or if the OP's engine is diesel).