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Rough Shifting/Hesitation in 2017 Q5 S-Tronic

0

Mike T. · rep 0 · May 26, 3:47 AM · 1 replies · solved · Question

Vehicle: 2017 Audi Q5 2.0T Premium Plus

I've got a 2017 Audi Q5 2.0T Premium Plus with the S-Tronic (DSG) transmission, and lately, I've noticed some unusual behavior. Specifically, there's a noticeable hesitation when accelerating from a stop, almost like a delay before it engages. Also, sometimes when shifting between lower gears (D1 to D2 or D2 to D3), there's a slight jerk or clunk. It's not constant, but it's concerning.

The car has about 65,000 miles. Is this normal for these transmissions, or should I be worried?

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 26, 3:47 AM

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Transmission hesitation and rough shifting in Audi Q5 models equipped with the S-Tronic (DL501/0B5) dual-clutch transmission are concerns that should be addressed promptly. While some characteristics of a DSG can feel different from a traditional automatic, consistent jerking or delays are not normal.

Causes & Diagnostics:

  1. Mechatronic Unit Failure: This is a common culprit in S-Tronic transmissions. The mechatronic unit is the control module that manages the clutch and gear changes. Internal solenoids or the control board can fail.
  2. Clutch Pack Wear: Over time, the wet clutch packs can wear down, leading to slippage or harsh engagement.
  3. Transmission Fluid (ATF) Issues: Incorrect fluid levels, old/degraded fluid, or lack of proper service can contribute to shifting problems. The S-Tronic requires specific fluid and filter changes, usually around 40k-60k miles.
  4. Software Adaptation: Sometimes, the transmission's adaptive learning can get "confused." A factory reset and re-adaptation might help.

When to See a Shop: It's crucial to have this diagnosed by an Audi specialist or dealership as soon as possible. Prolonged driving with transmission issues can lead to more severe and costly damage.

Repair Steps (What to expect):

  • Diagnostic Scan: A shop will perform a comprehensive scan using ODIS/VCDS to check for transmission fault codes (e.g., P17D8 - Torque Limitation due to Clutch Temperature, P17D4 - Valve 3 in part 1 of transmission, electrical fault).
  • Fluid Level/Condition Check: They will verify the transmission fluid level and condition. If overdue, a transmission fluid and filter service will be recommended.
  • Mechatronic Unit Repair/Replacement: If the mechatronic unit is faulty, it may be possible to repair it (e.g., replacing specific solenoids) or it might require a full replacement. This is a significant repair.
  • Clutch Pack Replacement: In cases of severe clutch wear, the entire clutch pack assembly might need replacement.
  • Software Update/Adaptation: Sometimes, a simple software update or a transmission adaptation reset can resolve minor issues.

Early diagnosis is key to potentially avoiding a full transmission replacement, which can be extremely expensive.

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