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1998 S70 Oil Cooler Lines 3528201 3528207

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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98S70T5
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1998 S70 Oil Cooler Lines 3528201 3528207

Post by 98S70T5 »

Does anyone know which side is supply and which side is return? I have one that someone did a crappy patch job on years ago I want to replace before it becomes and issue.

Thanks,
98S70T5
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Re: S70 Oil Cooler Lines

Post by 98S70T5 »

Scratch that, I see with some research they are connected together via a bracket. Probably makes more sense to replace together.

Thanks,
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erikv11
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Re: S70 Oil Cooler Lines

Post by erikv11 »

Together is smart, yes. Kind of an awful job but good luck!
'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 145k
'98 S70 NA, 220k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 293k
'06 S60 R, 167k
'07 XC70, 170k
'99 Camry V6 :shock: 130k
gone: '96 NA 850 210k, '98 NA V70 182k
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abscate
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Re: S70 Oil Cooler Lines

Post by abscate »

If you buy them new please put part numbers into this thread for search
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1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
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Link To Volvo Glossary
98S70T5
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Re: S70 Oil Cooler Lines

Post by 98S70T5 »

Will do, There must be some pin holes in the lower hard line on mine. When I first picked this up from my Grandpa I noticed a small drip spot on the ground. Closer inspection showed someone had slipped some rubber hose over the line itself at some point in time and used 2 hose clamps on each end of the hose. I tightened those up and no leaks now (it's been that way for the last 13 years at least).

I will just feel better about long highway trips with fresh lines so I don't evacuate all of my oil in a short amount of time if it should fail.
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Re: 1998 S70 Oil Cooler Lines 3528201 3528207

Post by abscate »

Part numbers added to title

Ouch $125 each!

** Don't forget the Orings - both at transmission and at radiator - several pieces.
Closer inspection showed someone had slipped some rubber hose over the line itself at some point in time and used 2 hose clamps on each end of the hose.

Thats the kind of repair that leads to blown engines
Empty Nester
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1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
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Re: 1998 S70 Oil Cooler Lines 3528201 3528207

Post by 98S70T5 »

Yikes, thanks for the part numbers.

The aftermarket ones are reasonable but it looks like they don't have the bracket (or maybe that bracket comes off of the factory parts?).

I guess that hose has held well for a very long time though.
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Re: 1998 S70 Oil Cooler Lines 3528201 3528207

Post by erikv11 »

Aftermarket (e.g. Dorman) is known to be very low quality on this part. The usual way to save a bundle of money on this job is to just get the lines rebuilt at a hydraulic shop but that assumes the hard line section is good.
'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 145k
'98 S70 NA, 220k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 293k
'06 S60 R, 167k
'07 XC70, 170k
'99 Camry V6 :shock: 130k
gone: '96 NA 850 210k, '98 NA V70 182k
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