Thermostat and Water Pump Replacement?!
01-25-2018, 12:55 PM
#21
you have to pull the supercharger off to replace the thermostat. I think the pump is around that location and MAY need the supercharger removed to replace. I guess if it was me, I would combine the repairs and do the labor like once for most of it...
01-25-2018, 08:54 PM
#22
AudiWorld Member
Any recommendations for a good one in Las Vegas? It's at the dealer with and update.... the thermostat is for sure bad and they're getting an error message that it's the diaphragm in the pump so they recommend replacement (no leak evidence). I could try to do them separately, in case the pump isn't bad yet. Thoughts?
The main water pump is on the front of the engine, has no diaphragm and gives no error messages. Sounds like they are describing the electric auxiliary water pump to cool down the supercharger. I have not replaced an auxiliary pump on a C7, so don’t know where it lives. Audi tends to use several locations, including under the SC and the back of the engine.
01-26-2018, 11:21 AM
#23
AudiWorld Member
Correct, Audi charges 5 hours labor
Although the shop that worked on mine had to do it twice as they crossed a pair of vacuum lines when the put it back together the first time. When driving off the lot, check engine light lit. Pulled back in, reset codes, tried again to leave. Got 10 feet further, again the light. After pulling it back in, again, noticed two codes flash on my P3 gauge P2006 & P2007. (Intake runner stuck closed.) They kept mine and gave us a loaner.
I've driven it a few thousand miles since then, all is well again
01-27-2018, 04:31 AM
#24
AudiWorld Member
When my thermostat was replaced, 5 hours labor @ $165 per hour. Part of the labor is placing the vehicle into the service position to remove the belts, supercharger, etc. I've read it can be done without doing so, but Audi has their written procedures. (As James May said, the germans love procedures....)
Although the shop that worked on mine had to do it twice as they crossed a pair of vacuum lines when the put it back together the first time. When driving off the lot, check engine light lit. Pulled back in, reset codes, tried again to leave. Got 10 feet further, again the light. After pulling it back in, again, noticed two codes flash on my P3 gauge P2006 & P2007. (Intake runner stuck closed.) They kept mine and gave us a loaner.
I've driven it a few thousand miles since then, all is well again
Although the shop that worked on mine had to do it twice as they crossed a pair of vacuum lines when the put it back together the first time. When driving off the lot, check engine light lit. Pulled back in, reset codes, tried again to leave. Got 10 feet further, again the light. After pulling it back in, again, noticed two codes flash on my P3 gauge P2006 & P2007. (Intake runner stuck closed.) They kept mine and gave us a loaner.
I've driven it a few thousand miles since then, all is well again
Now we understand the methodical labeling of hoses and wires when removing the SC. If you have done service position, it can be quicker and far less chance of breaking the infamous coolant pipe. Actually, five hours labor is a good time. Mechanics must have lots of experience replacing thousands of defective plastic thermostats on 3.0s. A serious weak spot.
01-28-2018, 10:26 AM
#25
AudiWorld Junior Member
When my thermostat was replaced, 5 hours labor @ $165 per hour. Part of the labor is placing the vehicle into the service position to remove the belts, supercharger, etc. I've read it can be done without doing so, but Audi has their written procedures. (As James May said, the germans love procedures....)
Although the shop that worked on mine had to do it twice as they crossed a pair of vacuum lines when the put it back together the first time. When driving off the lot, check engine light lit. Pulled back in, reset codes, tried again to leave. Got 10 feet further, again the light. After pulling it back in, again, noticed two codes flash on my P3 gauge P2006 & P2007. (Intake runner stuck closed.) They kept mine and gave us a loaner.
I've driven it a few thousand miles since then, all is well again
Although the shop that worked on mine had to do it twice as they crossed a pair of vacuum lines when the put it back together the first time. When driving off the lot, check engine light lit. Pulled back in, reset codes, tried again to leave. Got 10 feet further, again the light. After pulling it back in, again, noticed two codes flash on my P3 gauge P2006 & P2007. (Intake runner stuck closed.) They kept mine and gave us a loaner.
I've driven it a few thousand miles since then, all is well again
01-30-2018, 09:12 PM
#26
AudiWorld Member
Use a silver colored Sharpie. Easy to see on black vacuum lines and black electrical connectors. I learned this from a great DIY on thermostat replacement.
11-21-2018, 09:36 AM
#27
AudiWorld Member
Reviving an old thread but I have a '16 A6 premium plus and took my car in for 35k service (34k on odometer) and said they found a coolant leak at coolant pump/thermostat area and they are now going to replace the water pump (under warranty). Not sure if other's have had this problem on a C7.5 A6
11-21-2018, 09:52 AM
#28
AudiWorld Senior Member
Reviving an old thread but I have a '16 A6 premium plus and took my car in for 35k service (34k on odometer) and said they found a coolant leak at coolant pump/thermostat area and they are now going to replace the water pump (under warranty). Not sure if other's have had this problem on a C7.5 A6
Best,
Jeff
11-21-2018, 10:21 AM
#29
AudiWorld Member
I bought Audi care when I bought my car so all my services will be done by the dealer until 45k miles, and I also bought my car as CPO so warranty should be 6 years 100k miles instead of 4 years 50k. I know they changed the new CPO warranty to only be +1 year on top of the normal warranty but unlimited miles recently.
They also told me to change my tires ($1200), get an alignment ($300), change windshield wiper ($50) and that one of the trim panels ($300) on the bottom was missing... Not sure how a trim panel just falls off the car as I haven't run over anything
. But this is the first time they have found other things wrong with the car other than what was covered by warranty. I will probably pass on all the things they want to charge me for and get my wheels and alignment at an independent shop and replace the wiper myself
They also told me to change my tires ($1200), get an alignment ($300), change windshield wiper ($50) and that one of the trim panels ($300) on the bottom was missing... Not sure how a trim panel just falls off the car as I haven't run over anything
. But this is the first time they have found other things wrong with the car other than what was covered by warranty. I will probably pass on all the things they want to charge me for and get my wheels and alignment at an independent shop and replace the wiper myself
11-21-2018, 10:33 AM
#30
AudiWorld Senior Member
I have Audi care as well so visits to dealer every 10K (I have oil changed however between 10K services at an indy). Agree with you re: tires and wipers -- alignment you might need to do at dealer if your car is equipped with certain driver aids if I understand correctly. Interesting about change in CPO -- tells me that the accountants figured out that year 6 is when things really start to go wrong and cost $$. Good you got in on the old program.
Best,
Jeff
Best,
Jeff