Replacing temperature sensor housing and sensor


Asked by Aug 24, 2016 at 07:58 AM about the 2007 Audi A4 2.0T Quattro

Question type: Maintenance & Repair

I recently had my car in for service and inspection (98,000 miles) at the dealer.  I was told there is a leaking coolant flange.  The price to replace it along with the temp sensor housing and sensor was $800.  Why so expensive?

4 Answers

Tom Demyan

All in the labor, as other parts need to be removed. Plus you were at the dealer. The cost might be half if you take it to a local garage. Get some free quotes.

1 out of 1 people think this is helpful.

It's a dealership, and - if you're American - a foreign car dealership. Check a repair manual on how the repair is made, look up part prices online, and consider doing it yourself, or find a decent local mechanic.

1 out of 1 people think this is helpful.
Poly-Boi Masaniai

It depends.... Top coolant housing or coolant thermostat housing.... If its at the bottom leaking u might wanna check ur self... Audi dealer tried to charge me almost 1k telling me the same thing they told you N I walked away took car home N start taking off my intake manifold so I could get a closer look N to my surprise they lied.... I took off thermostat housing did an inspection nothing wrong no leaks at all dnt even try to pull the sensor I believe is all 1piece together so it dosnt come off so then put it all back, then there was this weird looking thing they call the j plug with a screw bolted on it holding it down... Me n my friend did a pressure test through coolant tank hose N at almost 200 psi the coolant was leaking through the j plug thing so I unscrew it n only half came out lol... The j plug was completely gone like snapped in half... Too remove the other half take thermostat housing off N push it out from insde put new j plug from junk yard for free, push it in bolt it down tight pressure test again no leaks put everything back... top coolant off n no more leaks.... Just sayin cause thats alot of money when its something else at the cost of nothing N my own free time lolz.

1 out of 1 people think this is helpful.

thank you for the input. I'm not a DIY car person but was trying to research the repair. Went to two other mechanics - both said they did not find a leak. So now I'm just watching the coolant level. One of the mechanics asked if I had the timing belt replaced at 75,000 as per the manufacturers recommended service. My records indicate it was checked at the 75,000 service check but not replaced. I'm thinking I should probably get it done. Any thoughts.

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