NewDL501 (0B5) S tronic parts
Parts for the Audi DL501 7-speed wet dual-clutch S tronic (code 0B5): TCUs and mechatronic units, conductor plates and wiring repair kits, solenoid valve kits, wet dual clutch assemblies, filters and special tools for the Audi A4, A5, A6, A7 and Q5.
- Gearbox
- 7-speed wet dual-clutch S tronic
- Codes
- 0B5
- Fits
- Audi A4 · A5 · A6 · A7 · Q5
- Order
- From 1 piece
In stock
13 DL501 parts in stock
Each part is checked against your OE number before you pay, and you get photos of the real item.
New
Remanufactured
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NewNo match. Send us the OE number and we will check stock.
Not listed? We source many more DL501 parts — send the number on your old part.
Search the full catalog→About the gearbox
What is the DL501?
The DL501 is the first-generation 7-speed S tronic for longitudinal engines, introduced in 2008 and rated up to about 550 Nm. It was fitted to Audi's mid-size and large models with 2.0 TFSI, 3.0 TFSI and 3.0 TDI engines, mostly with quattro.
Mechatronic failures are the main issue: warning lights, harsh shifts, lost gears or no reverse, often from internal component failure, debris-worn solenoids or corrosion at the mechatronic connector.
- Type
- 7-speed wet dual-clutch S tronic
- Gearbox code
- 0B5
- Max input torque
- About 550 Nm
- Engines
- 2.0 TFSI · 3.0 TFSI · 3.0 TDI, longitudinal
- In production
- From 2008 (cars to about 2016)
Fitment
Cars with the DL501 gearbox
Not every engine of each model uses this gearbox, so always confirm with the OE number, gearbox code or VIN.
| Brand | Models |
|---|---|
| Audi | A4 B8 and allroad · S4 B8 · A5 and S5 (8T) · A6 C7 · A7 (4G) · Q5 (8R) and SQ5 |
Diagnosis
Common DL501 faults and the part to replace
A quick guide from common symptoms. Send us your fault codes for a free check before ordering.
| Symptom | Usual cause | Part |
|---|---|---|
| EPC and PRNDS lights, limp mode, codes return after clearing | Internal failure of the mechatronic control unit | TCU / mechatronic unit |
| Harsh shifts, lost gears or no reverse | Valve or solenoid faults in one sub-gearbox (codes P173C–P174F) | Solenoid kit / mechatronic |
| Intermittent communication faults | Coolant or water corrosion at the mechatronic connector, internal wiring harness | Conductor plate / wiring repair kit |
| Slipping, clutch temperature warnings | Worn wet clutch pack (codes P1740, P17D8) | Dual clutch assembly |
Part numbers
DL501 part number reference
Numbers from our own stock list. Versions are not always interchangeable, so send us the number on your old part and we confirm the correct replacement.
| TCU / mechatronic | 0B5927156E · 0B5927256D · 0B5325031 · 0HL927156C |
|---|---|
| Solenoids & wiring | 0B5398048D (solenoid kit) · 0B5398009C (conductor plate repair kit) |
| Dual clutch | 0B5141030E · 0B5141030G |
| Service & tools | Filter 0B5325429E · sensor tools T40217 / T40228 |
FAQ
DL501 questions
01Which TCU numbers fail most?
Repair specialists list 0B5927256B, 0B5927256D, 0B5927256F, 0B5927156D and 0B5927156E among the units that fail. Always match the exact number and software version of your old unit.
02Is component protection an issue?
Yes. A replacement mechatronic often stores component protection codes that must be cleared online with the Audi dealer tool, then basic settings run.
03Do you supply clutches and filters too?
Yes: wet dual clutch assemblies, filter 0B5325429E and sensor removal tools. Change fluid and filter whenever the mechatronic or clutch is replaced.
04What is the minimum order and warranty?
One piece. Warranty depends on the part and condition and is written on your quotation.