nord
Veteran Member
- Joined
- Mar 5, 2010
- Location
- Southern Tier NY
- TDI
- All turned back to VW. Now a 2017 Hundai Tuscon. Not a single squalk in 10k miles.
Nope, you aren't good even though you may have heat. Orange coolant is contaminated. Whether the flush was incomplete or even done is now in question. I hate to say it but "mechanics" are notorious for ignorance or cutting corners. Leaving orange coolant is very telling.
You do realize that the main cooling system and the EGR system share the same coolant but are distinct circuits, don't you? I would suspect that you got a "quickie" flush which left the EGR circuit untouched. (Very easy to overlook if you don't know the system, or don't much care.)
Notice with my method that you vacuum out as much contaminated coolant as possible, then refill with pure water. The car is then driven and brought to normal operating temp. This insures that clean water reaches and flushes the EGR system. You'll further note that the procedure is repeated until all you get is clean water when you vacuum the reservoir. Usually about three cycles in my experience.
The last step will be to vacuum as much clean water out of the system as possible. Bring the coolant level back up with new coolant and you'll be very close to a 50/50 mix. Run the car and recheck the mix. If slightly off, then vacuum a bit out of the reservoir and refill with water or coolant depending which is needed for 50/50 as specified.
Or... Run until the problem reappears and let your mechanic do it all over again. Maybe not the best plan but perhaps a lesson taught as changing the core is no picnic.
You do realize that the main cooling system and the EGR system share the same coolant but are distinct circuits, don't you? I would suspect that you got a "quickie" flush which left the EGR circuit untouched. (Very easy to overlook if you don't know the system, or don't much care.)
Notice with my method that you vacuum out as much contaminated coolant as possible, then refill with pure water. The car is then driven and brought to normal operating temp. This insures that clean water reaches and flushes the EGR system. You'll further note that the procedure is repeated until all you get is clean water when you vacuum the reservoir. Usually about three cycles in my experience.
The last step will be to vacuum as much clean water out of the system as possible. Bring the coolant level back up with new coolant and you'll be very close to a 50/50 mix. Run the car and recheck the mix. If slightly off, then vacuum a bit out of the reservoir and refill with water or coolant depending which is needed for 50/50 as specified.
Or... Run until the problem reappears and let your mechanic do it all over again. Maybe not the best plan but perhaps a lesson taught as changing the core is no picnic.