XC70: General Four C Service Light Fault

[Phil R]

Hi,
For the passed couple of months my message display has been intermittantly displaying 'Four-C Service Required' along with the orange triangle exclamation.
Just had the car back from main dealer who's invoice shows; ran Dtc's? scans, checked wiring feeds & earths from SUM? through REM? to suspension. Cleaned all connections. Road tested vehicle - no further Dtc's stored.
£135 lighter and a further 200 miles on the clock the same internittant message display is back again - clearly the fault hasn't been fixed properly, does anyone have any idea what could be causing it please?
Phil R

[ggravier]

Tell them to drive the car above 120km/h and it will retrigger the fault...

Gilles

[berrymanuk]

Originally Posted by Phil R

Hi,
For the passed couple of months my message display has been intermittantly displaying 'Four-C Service Required' along with the orange triangle exclamation.
Just had the car back from main dealer who's invoice shows; ran Dtc's? scans, checked wiring feeds & earths from SUM? through REM? to suspension. Cleaned all connections. Road tested vehicle - no further Dtc's stored.
£135 lighter and a further 200 miles on the clock the same internittant message display is back again - clearly the fault hasn't been fixed properly, does anyone have any idea what could be causing it please?
Phil R

Sounds like a sensor fault. Same issue the previous owner had on our S80. I suggest taking it back to them with the error displayed and get them to check the suspension sensors. I'll dig out the service sheet and just confirm the dtc code.

[Dtp]

Same thing happened to mine. I found one of the little black sensors had come adrift. The one under the sat nav box. It might be worth having a look

[rnlisg]

it seems they have not cleared the problem then,best take it straight back and ask them to have another(proper)look.
keep us posted on the results.
cheers
sandy