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Audi · Known Issues

2017 Audi TTS Problems: 2 Known Issues

2017 model year · 114+ owner reports · Updated September 2026

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Issue summary

According to Au7o's analysis of 114+ owner reports, the 2017 Audi TTS has 2 documented known issues, with 1 rated critical. The most serious is Water Pump and Thermostat Housing Failure ($500-$1,300 repair). The most commonly reported issue is Water Pump and Thermostat Housing Failure with 114 owner reports. Across all issues with published estimates, repair costs range from $500 to $1,300. DIY maintenance guides at au7o.io.

In This Article

  • TTS Cooling1
  • TTS Engine1
  • FAQ
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In This Article

  • Cooling1
  • Engine1
  • FAQ

All 2 Known Issues

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Community reported
114 owners

On the 2009-2024 Audi TTS EA888, the TTS shares the EA888 cooling system weakness with the TT but the higher power output generates more heat. Water pump impeller and thermostat housing plastic degrade faster under thermal stress.

This issue also affects: Audi Q3, Audi S3

Common Symptoms

  • Overheating
  • Coolant leak at housing
  • Temperature fluctuation
  • Low coolant warning
  • Sweet smell from engine
  • Heater performance loss

How to Fix

Replace water pump, thermostat, and housing as a complete assembly. Use metal-impeller aftermarket pump if available.

Typical repair cost:$500 - $1,300

Research This Issue

Based on 114 owner reports

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Community Reported
High Confidence114 owner reportsLast reported by owners Mar 2026Reviewed Mar 2026

On the 2016-2017 Audi TTS, audi TSB 2051384/1 applies to 2016-2017 TTS vehicles with the 2.0 TFSI CYFB engine when P030000, P030100, P030200, P030300 and/or P030400 misfire DTCs are recorded under extreme conditions within 30 seconds after cold start, across all cylinders at the same time in the 2,000-3,000 rpm range, while no actual misfire can be felt. Audi attributes that exact pattern to ECM software. The bulletin does not establish intake-valve carbon as the cause of general rough idle, power loss or misfires and does not support scheduled walnut blasting, a catch can or an “Italian tuneup.”

This issue also affects: Audi S8, Audi A4, Audi A1

Common Symptoms

  • MIL after an extreme-condition cold start
  • Simultaneous cylinder-misfire DTCs within 30 seconds of startup
  • No misfire felt while the DTCs are recorded

How to Fix

Confirm the exact cold-start timing, simultaneous-cylinder DTC pattern, absence of a felt misfire, CYFB engine and installed ECM software before using this bulletin. When applicable, an Audi-capable workshop updates ECM J623 from software part number 8S0906259C version 0001 to version 0004 or higher using SVM action 01A190, then clears the DTCs. A felt misfire, a different timing or RPM pattern, a different engine/software combination or a returning concern requires normal diagnosis rather than carbon cleaning by assumption.

Research This Issue

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Manually Verified
High ConfidenceVerifiedReviewed Jul 2026
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Other Audi Models

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Frequently Asked Questions

What are the most common Audi TTS problems?

According to Au7o's analysis of 114+ owner reports, the 2017 Audi TTS has 2 documented issues. The most frequently reported are: Water Pump and Thermostat Housing Failure, 2016-2017 TTS Cold-Start Misfire DTCs Without Felt Misfire - TSB 2051384/1. Of these, 1 is rated critical and should be addressed promptly.

Is the Audi TTS reliable?

The 2017 Audi TTS has 2 known issues documented across 114+ owner reports. 1 issue is rated critical: Water Pump and Thermostat Housing Failure. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Audi TTS problems?

Repair costs for known Audi TTS issues range from $500 to $1,300, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Water Pump and Thermostat Housing Failure, typically costs $500-$1,300 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2009-2024 Audi TTS Water Pump and Thermostat Housing Failure?

The TTS shares the EA888 cooling system weakness with the TT but the higher power output generates more heat. Water pump impeller and thermostat housing plastic degrade faster under thermal stress. Repairs typically run $500-$1,300. Severity: high.

What is the 2016-2017 Audi TTS 2016-2017 TTS Cold-Start Misfire DTCs Without Felt Misfire - TSB 2051384/1?

Audi TSB 2051384/1 applies to 2016-2017 TTS vehicles with the 2.0 TFSI CYFB engine when P030000, P030100, P030200, P030300 and/or P030400 misfire DTCs are recorded under extreme conditions within 30 seconds after cold start, across all cylinders at the same time in the 2,000-3,00… Severity: low.

Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.

Data sourced from 114+ owner reports, NHTSA recalls, TSBs, and automotive forums.