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Four-C

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive "P2" platform cars.

2001 - 2007 V70
2004 - 2007 V70 R
2001 - 2007 XC-70
2001 - 2009 S60
2003 - 2007 S60 R

Danpaco
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Danpaco

Four-C

Post by Danpaco » Thu Jun 11, 2020 4:43 pm

Can the Four-C suspension be taken out and replaced with non-Four-C? I assume the dashboard will light up but is there anything else I should be concerned with.
2006 XC-70 Canadian market
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Danpaco

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RickHaleParker
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Re: Four-C

Post by RickHaleParker » Thu Jun 11, 2020 5:19 pm

The wiring should be there.

You would need to get:
1. Suspension Control Module (SUM).
2. Switch unit in dash.
3. Rear left angle sensor.
4. Rear right angle sensor.
5. Two Monroe C2501 struts.
6. Two Monroe C1501 shocks.
7. A total of five Acceleration sensors. Two at ends of bumper. Two on struts and one in the left rear quarter panel.

You may need to activate the 4C in the CEM.
--------
Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000.
Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0.
Platform P2 2004 S60R, B2524T4, AW50/51 AWD, B8444S TF80 AWD, Bosch Motronic 7.0, BorgWarner K24 turbocharger. V8 conversion in progress.

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volvolugnut
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volvolugnut

Re: Four-C

Post by volvolugnut » Thu Jun 11, 2020 7:22 pm

I believe the original question was how to remove 4C, not how to add 4C.
volvolugnut
2001 V70 T5, 1986 244DL, 1983 245DL, 1975 245DL, 1959 PV544, multiple parts cars.

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RickHaleParker
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Re: Four-C

Post by RickHaleParker » Thu Jun 11, 2020 9:50 pm

volvolugnut wrote:
Thu Jun 11, 2020 7:22 pm
I believe the original question was how to remove 4C, not how to add 4C.
volvolugnut
Wack!

There might be a flag to deactivate Active suspension in the CEM. Pulling fuse F24 in the REM will shut down the SUM. Either one might quell any complaints. If you are already getting Active suspension warnings you might go ahead and try this now.

Danpaco what you going to do with the Strut Acceleration sensors? I intend to add 4C back into my S60R project sometime down the road. Previous owner removed the 4C Struts and Acceleration sensors. Still have the 4C shocks and other components but do not know what shape they are in.
--------
Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000.
Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0.
Platform P2 2004 S60R, B2524T4, AW50/51 AWD, B8444S TF80 AWD, Bosch Motronic 7.0, BorgWarner K24 turbocharger. V8 conversion in progress.

Danpaco
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Danpaco

Re: Four-C

Post by Danpaco » Thu Jun 11, 2020 10:05 pm

Thanks for the reply.
I need a suspension overhaul on both front and back of my XC-70. I'm having a hard time justifying the cost of a four-C overhaul vs a good OE replacement considering the age and mileage of the car.
danpaco

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abscate
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Re: Four-C

Post by abscate » Fri Jun 12, 2020 3:33 am

I’m near Albany if you are nearby. Spring compressor, shop Press, driveway space , ability to break stuff , and general tomfoolery
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Danpaco
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Re: Four-C

Post by Danpaco » Fri Jun 12, 2020 7:42 am

abscate wrote:
Fri Jun 12, 2020 3:33 am
I’m near Albany if you are nearby. Spring compressor, shop Press, driveway space , ability to break stuff , and general tomfoolery
Unfortunately Abscate, I'm not in the Valley anymore, we moved back to Toronto. With the current border closures lasting until at least July 31st I wont be travelling south for a while. That would have been fun.

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kallekula
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Re: Four-C

Post by kallekula » Fri Jun 12, 2020 9:39 am

What's the price diff of a "normal" shock/strut and the electronically controlled one?

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Danpaco
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Re: Four-C

Post by Danpaco » Fri Jun 12, 2020 12:08 pm

The four-c front strut in Canada from the parts store (Monroe 2503) is $850 each vs a regular Sachs strut being $250ish! The rear four-c shocks are similar although I haven't checked specifically. From the US they are $500 each in Canadian dollars from Viva but considering covid delays with Canada Post who knows when they will arrive.
danpaco

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vtl
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vtl

Re: Four-C

Post by vtl » Fri Jun 12, 2020 12:48 pm

Convert front to regular, rear to Nivomats. XC70 on a regular suspension is not a very good driver car. Nivomats are 1/2 of 4C price, and you need only rears.
05 XC70 265k, 16 XC60 45k, 19 Tundra 5k

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