# 2010 Volkswagen Passat - Could it be the turbo? **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** volkswagen\ **Created:** [May 16, 2019, 3:27pm UTC](https://community.cartalk.com/t/2010-volkswagen-passat-could-it-be-the-turbo/140452 "2019-05-16T15:27:59Z")\ **Posts on this page:** 13\ **Page:** 1
**Author:** ![Carl57](https://avatars.discourse-cdn.com/v4/letter/c/a183cd/32.png) [@Carl57](https://community.cartalk.com/u/Carl57)\ **Post date:** [May 16, 2019, 3:27pm UTC](https://community.cartalk.com/t/2010-volkswagen-passat-could-it-be-the-turbo/140452/1 "2019-05-16T15:27:59Z")
Have changed water pump, thermostat, radiator, coolant. Over heating when driving. Idle speed 190%. Could it be the turbo waste gate solenoid? ---
**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/48514_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\ **Post date:** [May 16, 2019, 7:20pm UTC](https://community.cartalk.com/t/2010-volkswagen-passat-could-it-be-the-turbo/140452/2 "2019-05-16T19:20:43Z")
> [@Carl57](#): > > Idle speed 190% Could you clarify this point for us? Are you telling us that the engine is idling 190% higher than it should? 🤔 ---
**Author:** ![Carl57](https://avatars.discourse-cdn.com/v4/letter/c/a183cd/32.png) [@Carl57](https://community.cartalk.com/u/Carl57)\ **Post date:** [May 16, 2019, 10:33pm UTC](https://community.cartalk.com/t/2010-volkswagen-passat-could-it-be-the-turbo/140452/3 "2019-05-16T22:33:41Z")
No. The engine is running at 190%. We have replaced the radiator, water pump, thermostat (3 times) , removed thermostat, bleed system complete, correct coolant, remove cats, removed and replaced gate solenoid on turbo. It still over heats when driving. Not a idle. We believe it has to be clogged engine portals. Your thought please? ---
**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\ **Post date:** [May 16, 2019, 10:35pm UTC](https://community.cartalk.com/t/2010-volkswagen-passat-could-it-be-the-turbo/140452/4 "2019-05-16T22:35:16Z")
Do you mean 190 degrees? Tester ---
**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\ **Post date:** [May 16, 2019, 11:01pm UTC](https://community.cartalk.com/t/2010-volkswagen-passat-could-it-be-the-turbo/140452/5 "2019-05-16T23:01:37Z")
190 degrees is the temperature it is supposed to be. Not overheating. ---
**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/48514_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\ **Post date:** [May 16, 2019, 11:02pm UTC](https://community.cartalk.com/t/2010-volkswagen-passat-could-it-be-the-turbo/140452/6 "2019-05-16T23:02:02Z")
> [@Tester](#): > > Do you mean 190 degrees? … and, if so, is that 190 degrees Fahrenheit or Celsius? ---
**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\ **Post date:** [May 16, 2019, 11:04pm UTC](https://community.cartalk.com/t/2010-volkswagen-passat-could-it-be-the-turbo/140452/7 "2019-05-16T23:04:26Z")
The OEM thermostat is rated at 203 degrees. [https://www.rockauto.com/en/catalog/volkswagen,2010,passat,2.0l+l4+turbocharged,1445580,cooling+system,thermostat,2200](https://www.rockauto.com/en/catalog/volkswagen,2010,passat,2.0l+l4+turbocharged,1445580,cooling+system,thermostat,2200) Tester ---
**Author:** ![VOLVO-V70](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@VOLVO-V70](https://community.cartalk.com/u/VOLVO-V70)\ **Post date:** [May 16, 2019, 11:55pm UTC](https://community.cartalk.com/t/2010-volkswagen-passat-could-it-be-the-turbo/140452/8 "2019-05-16T23:55:42Z")
> [@Carl57](#): > > remove cats, If that means you removed the catalytic converters then you have violated a federal law if you are in the US. ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [May 17, 2019, 2:28am UTC](https://community.cartalk.com/t/2010-volkswagen-passat-could-it-be-the-turbo/140452/9 "2019-05-17T02:28:38Z")
If you mean the engine is running at 190 deg F (rather than %) at idle, 190 deg F coolant temperature at idle is normal once the car is warmed up. If you continue to feel the car is overheating more than it should only at idle, that is often caused by the radiator fans not working correctly. If you mean the turbo is giving a 190% boost at idle, that sounds like something is wrong with the turbo function, and could possibly be the waste gate solenoid. Since there are many other possible culprits, the problem should be properly diagnosed by your shop, before considering to replace parts. ---
**Author:** ![thegreendrag0n](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/thegreendrag0n/32/9265_2.png) [@thegreendrag0n](https://community.cartalk.com/u/thegreendrag0n)\ **Post date:** [May 17, 2019, 3:02am UTC](https://community.cartalk.com/t/2010-volkswagen-passat-could-it-be-the-turbo/140452/10 "2019-05-17T03:02:21Z")
if radiator cap is not holding pressure as it is supposed to do, coolant may and probably will boil out cheap part to replace ---
**Author:** ![Carl57](https://avatars.discourse-cdn.com/v4/letter/c/a183cd/32.png) [@Carl57](https://community.cartalk.com/u/Carl57)\ **Post date:** [May 28, 2019, 10:24pm UTC](https://community.cartalk.com/t/2010-volkswagen-passat-could-it-be-the-turbo/140452/11 "2019-05-28T22:24:37Z")
Here is the story. The customer purchased the engine form else where. When they packaged it someone crammed rags deep into the radiator hose; which is three lines comes together. Took time to figure it out, but we did. Thank you everyone. Carl ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [May 29, 2019, 3:46am UTC](https://community.cartalk.com/t/2010-volkswagen-passat-could-it-be-the-turbo/140452/12 "2019-05-29T03:46:32Z")
Thanks for the great feedback. Discovering that rags, paper, etc that was used to protect stuff under repair is causing a problem b/c it was forgot about and not removed is a pretty common thing. Ask me how I know … lol … ---
**Author:** ![thegreendrag0n](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/thegreendrag0n/32/9265_2.png) [@thegreendrag0n](https://community.cartalk.com/u/thegreendrag0n)\ **Post date:** [May 29, 2019, 12:07pm UTC](https://community.cartalk.com/t/2010-volkswagen-passat-could-it-be-the-turbo/140452/13 "2019-05-29T12:07:34Z")
Rug in the cooling system? Huh? 🙂 It made me think of VAG a little bit better after all unnecessarily over-complicated things they put in their vehicles lately. Before that, the last “true to its roots” engine of VAG I knew was inline 5 cylinder my friend has in old A6 body: that thing survived hot Virginia summer with water pump seized and still runs, years after that failure. His wife complained “it is no heat” somewhere late February, so he delayed repair until October next year… to discover that water pump was seized completely. No damage, no overheating, as this engine has a good convection flow 🙂