Automatic Transmission Assembly for 2015-2017 Audi A4, A5
Product Notes Read before buying
This is an 8-speed automatic transmission for all-wheel drive (Quattro) models with the 2.0L turbocharged engine. To ensure compatibility, please verify that your vehicle's transmission ID code is 'QCT'. This part will not fit front-wheel drive vehicles or models with a different engine or transmission.
Voice or type your vehicle details and Wrenchy will confirm fitment in seconds.
Vehicle Fitment Guide
This part fits the following vehicles:
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| 2015 - 2016 |
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| 2015 - 2017 |
Know This Transmission Before You Buy
The research behind our purchase interview — recalls, bulletins and real install economics for this transmission family:
A quick look at your own vehicle makes sure the right transmission shows up:
- Verify the three-letter transmission code is QCT on the vehicle's build sticker (spare tire well or service booklet).
- Confirm the vehicle is equipped with the Quattro (AWD) system.
- Confirm the engine is a 2.0L Turbocharged 4-cylinder (TFSI).
What the install really takes — plan and budget with confidence:
Special tools this job needs:
- Audi-compatible diagnostic scan tool (VCDS, ODIS, or high-end bidirectional scanner)
- Triple square (XZN) and Torx bit sockets (M10 and M12 triple squares for driveshaft bolts)
- Fluid fill pump adapter (specifically for the ZF 8HP fill port)
- Engine support bar
- Transmission jack
Budget for these consumables at install:
- OE-spec ZF Lifeguard 8 fluid (Audi spec G 060 162 A2)
- Integrated plastic transmission oil pan assembly (includes filter and gasket) and new pan bolts
- Front pump input shaft seal (torque converter seal)
- Rear output shaft seals
- New torque-to-yield bolts for driveshafts, subframe, and transmission mounts
- Transmission cooler line flush agent
What your vehicle’s computers will need after the swap:
What’s involved: Security/Immobilizer re-marriage (Component Protection) AND TCM adaptive relearn
Audi's 5th-generation immobilizer (WFS5) locks the internal TCM to the donor vehicle's VIN. This requires a Component Unlock via Audi's live online database (GEKO system) using ODIS. Alternatively, an advanced programmer can clone the flash and EEPROM data from the original TCM to the replacement unit, or the original mechatronic unit can be swapped into the replacement housing. A full TCM adaptive relearn drive cycle must also be performed.
Pro tips for a smooth first start-up — hand them to whoever does the install:
- Torque Converter Seating: Ensure the torque converter is fully seated (clicks three times and sits recessed) before bolting to the engine to prevent cracking the internal oil pump gear.
- Fluid Fill Temperature & Procedure: Fluid level check is highly temperature-sensitive. Must be checked on a level lift, engine running, with fluid temperature between 35C and 45C.
- Driveshaft Bolt Torque: Quattro driveshaft bolts are one-time-use stretch bolts and must be replaced.
- Alignment Dowels: Ensure engine-to-transmission alignment dowels are in place to prevent crooked seating and input shaft bearing destruction.
- Component Protection: The vehicle will be in limp mode or will not move at all until Component Protection is removed.
- Torque Converter Bolt Access: Access can be notoriously difficult, sometimes requiring removal of the starter motor.
Easy to get right once you know them:
- Expecting 'Plug-and-Play' without programming or clearing the Component Protection lock.
- Reusing the old plastic oil pan instead of installing a new pan/filter kit.
- Using cheap generic or universal ATF instead of ZF Lifeguard 8.
- Mixing up solenoids during a mechatronic swap, which causes severe shift flares.
- Skipping the transmission cooler line flush, leading to immediate contamination of the replacement unit.
- Improper fluid level check (checking with the engine off, leading to gross underfilling).
Not issues with the units on this page — the manufacturer documented these for every transmission of this family, wherever you buy one. Handy for your installer:
🔎 Recommended at install: Resolved via a TCM software update using SVM Action Code 02A048
🔎 Recommended at install: Often originates from the weep hole of the double seal between the transmission and transfer case; replace double seal
🔎 Recommended at install: Resolved via TCM software updates
🔎 Recommended at install: Bore wear at the torque converter pressure valve in the valve body causes pressure loss; requires valve body repair
🔎 Recommended at install: Replace electrical connector sleeve (Mechatronic sleeve) to prevent ATF contamination of electrical pins
🔎 Recommended at install: Change fluid every 50,000 to 75,000 miles despite Audi's lifetime fill claim to prevent clutch wear debris from clogging solenoids
Researched from factory recalls, TSBs and OEM service data (reference unit 400-62894-4945188). Unit-specific details — mileage, condition, warranty, freight — are covered in the checkout interview.
Policies, in plain English.
Shipping & Handling
- Ships by LTL freight on a pallet — a real freight truck, not a parcel van
- Your checkout freight quote covers delivery to your door (liftgate service included for residential addresses)
- The carrier calls ahead to schedule a delivery window — someone must be present to receive it
- Typically palletized and picked up within 2–3 business days; transit time depends on distance
120-Day Warranty
This part includes a 120-day warranty.
- If the part fails within the warranty window, we'll replace it or refund per the coverage terms
- Coverage is parts-only — installation labor is not included
- Warranty covers defects — not installation errors, misuse, or damage after installation
Your pre-purchase interview reviews these exact terms with you before anything is charged.
Returns (30 Days)
We accept returns of uninstalled parts within 30 days of delivery for this part.
- Defective parts: We will replace the part or issue a refund at our discretion
- Programming: "Needs to be programmed to my vehicle" is not a valid return reason. Many modules require dealer programming — we're happy to help connect you with resources if your dealer says it's not programmable
- Return shipping: This part ships by freight (LTL) — the part price is refundable per the terms above, but shipping costs are non-refundable and return freight follows the seller's return terms. Your pre-purchase interview walks through the exact numbers before you buy
- Parts must be returned in original packaging and unmodified condition
- Poorly packaged returns that arrive damaged will not be credited
Damaged in Shipping?
Freight damage is rare — and you're fully protected when you do two things at delivery:
- Inspect before you sign — you're allowed time to look the pallet over while the driver waits
- Write any damage on the delivery receipt before signing — that one line is what makes a freight claim succeed
- Severe damage? Refuse the delivery — it goes back at no cost to you and we make it right
- Photograph the pallet before unwrapping; report concealed damage within 24 hours of delivery
We handle the carrier claim — you just help document it. Your pre-purchase interview walks through this checklist too.
Order Cancellation
Cancel before shipment for a full refund. Once the pallet has been built, a preparation charge may apply — and once the freight carrier picks it up, shipping costs are non-refundable and standard return terms apply. Your pre-purchase interview shows the exact numbers before you pay.
Expert Guides
2015-2017 Audi A4 & A5 ZF 8HP55A: Problems, Identification, and Used Replacement
Identify the exact QCT transmission for your 2.0L Quattro, learn what causes harsh shifting and leaks, and know when to replace it with a verified used OEM unit.
Read Full Guide →Related Trouble Codes (OBD-II)
5 matching guidesIf your scan tool is showing one of these trouble codes, this part is a common fix. Each guide explains the code, how to diagnose it, and exactly what to replace.
Miscellaneous Information
OEM Part Numbers:
Audi: 0BK300040J, 0BK300040J001
Other: QCT
Fits Years: 2015 2016 2017
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This unit ships with the selling yard's 120-day warranty. Longer plans can be requested during checkout.
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