- Sep 29, 2018
- S204 C250 CDI AMG Sport
OM651 Still have undiagnosed coolant and oil leak which I must get sorted very soon .
Noticed this for some time now and was dismissed by another Mercedes driver as air con pipes condensation , the liquid seems pure unlike coolant but seems to carry engine? oil in it .
Maybe the AC pipe condensation then dripping onto oil leak ?
On a lighter concrete driveway it did leave a dark stain in same position .
Seems to happen some hours after a 20 min+ journey and not a 5 min pop to the shops .