Ubique
Member
- Messages
- 2,608
- Location
- East Midlands
Bit of an update and some new stuff...
CSOV turned up today, fitted, airpath 'learn' routine run. Road-tested & gone.
Another sales car from a trader, L405 20MY, a couple of issues - restricted performance & lots of smoke, smelling suspiciously of diesel, a quick smoke test shows one of the charge air hoses adrift. refitted with new hose clamp and onto the next defect.
Cabin temperature imbalance side-to-side, checked HVAC DTC's and 'cabin temperature sensor fan stuck' a quick check confirms why....
Yuk! - the hair was strong enough to stop the fan impeller which draws in cabin air through a grille, God knows how it got there, the workshop hoover dealt with the issue.
Next on the list, Infotainment won't play radio or TV - no stations listed.
Sure enough, no noise - but it's possible to connect by Bluetooth and USB and play sound.
No DTC's - in fact no comms with the media controller at all!
Removed the passenger seat to find some very old signs of water ingress....
So that's a new, well, exchange unit required then - £1500ish.
Only other thing worth of mention today - not my task but I've seen plenty of M-B's with this issue...
Reported symptoms of random loss of power with EML, sometimes a restart will clear it, sometimes it won't... Already had a VGT turbo replaced elsewhere despite there being no DTC's indicating turbo issues - plenty of EGR codes though.
'Under guidance' the exhaust shutoff flap was checked (this is required for EU6 diesel vehicles with a low pressure EGR) - found to be free as a bird, which it shouldn't be.... it should default to fully open against spring pressure.
A new exhaust section ordered (£720) and that'll be another carpark space freed up tomorrow!
It's worth pointing out that no amount of 'mapping out' would have fixed this mechanical defect.
CSOV turned up today, fitted, airpath 'learn' routine run. Road-tested & gone.
Another sales car from a trader, L405 20MY, a couple of issues - restricted performance & lots of smoke, smelling suspiciously of diesel, a quick smoke test shows one of the charge air hoses adrift. refitted with new hose clamp and onto the next defect.
Cabin temperature imbalance side-to-side, checked HVAC DTC's and 'cabin temperature sensor fan stuck' a quick check confirms why....
Yuk! - the hair was strong enough to stop the fan impeller which draws in cabin air through a grille, God knows how it got there, the workshop hoover dealt with the issue.
Next on the list, Infotainment won't play radio or TV - no stations listed.
Sure enough, no noise - but it's possible to connect by Bluetooth and USB and play sound.
No DTC's - in fact no comms with the media controller at all!
Removed the passenger seat to find some very old signs of water ingress....
So that's a new, well, exchange unit required then - £1500ish.
Only other thing worth of mention today - not my task but I've seen plenty of M-B's with this issue...
Reported symptoms of random loss of power with EML, sometimes a restart will clear it, sometimes it won't... Already had a VGT turbo replaced elsewhere despite there being no DTC's indicating turbo issues - plenty of EGR codes though.
'Under guidance' the exhaust shutoff flap was checked (this is required for EU6 diesel vehicles with a low pressure EGR) - found to be free as a bird, which it shouldn't be.... it should default to fully open against spring pressure.
A new exhaust section ordered (£720) and that'll be another carpark space freed up tomorrow!
It's worth pointing out that no amount of 'mapping out' would have fixed this mechanical defect.
