1998 S70 GLT 165K short coolant hose behind engine burst

willst5 · Post by **willst5** » 17 Aug 2013, 18:31

There is a short coolant hose behind the engine on the passenger side being fed from the overflow tank. I noticed it was swollen and went to the dealership to get a replacement. They couldn't find it on their diagram and suggested I just replace it with a generic coolant hose. Well, it burst and drained the overflow tank on the way home. It looks like the hose swelled enough to touch a nearby engine bolt and burst at the point of contact.

I was able to get some 1/2" ID hose from NAPA to get back on the road, but the ID is over-sized. Does anyone know the actual part number or dimensions? My other 70 series cars also have this issue. Thanks.

Post by **cn90** » 17 Aug 2013, 19:21

I wrote this whole DIY below.

DIY: 1998 S70 GLT Turbo Coolant Hoses and 2 Radiator Hoses...
https://www.matthewsvolvosite.com/forums ... =1&t=55306

willst5 · Post by **willst5** » 18 Aug 2013, 04:27

Excellent. Thank you! The Turbo coolant outlet hose burst.

Post by **cn90** » 18 Aug 2013, 05:10

It is usually the other way around, the INLET hose bursts first, then OUTLET hose.
Whatever you do replace both!

PS: For Outlet hose, I used a fuel hose I had laying around in my garage.
For Inlet hose, use Volvo OEM hose only.