DL501 Overhaul Kit, new and ready to install. Fits the DL501. Ships fast from the USA.
If your Audi with the seven-speed S tronic is weeping fluid at the bell housing, flaring between gears once it is hot, or slow to pull into Drive on a cold morning, and the unit is coming out for a rebuild, this is the seal and gasket set for the job. It is built for the 0B5 transmission (internal code DL501) used in 2008-2014 longitudinal-engine Audis with quattro, and the application list on the kit also covers the 2014 Porsche Macan. It is the kit without pistons: the soft parts only, so it suits a teardown where the original bonded pistons are still serviceable.
The DL501 is a wet dual-clutch gearbox, and nearly everything it does depends on sealed hydraulic circuits. The mechatronic unit sends regulated pressure to two concentric multi-plate clutches. The larger outer clutch drives the odd gears and the nested inner clutch drives the even gears and reverse. Those apply circuits travel through rotating sealing rings on the clutch hub and through O-rings at every passage between the mechatronic, the housings and the case. When those rubber and Teflon parts harden or wear, apply pressure bleeds off, the control unit has to command more pressure to hold the clutch, and slip and heat climb.
The 0B5 is also unusual because it runs two completely separate oil circuits. One holds about 7.5 liters of ATF for the clutches and mechatronic, and the other holds about 4.3 liters of hypoid gear oil for the gear train and the front and center differentials. The seals between those two sections are what keep them apart. A failed one lets gear oil and ATF mix, which ruins the clutch fluid. A full reseal with this kit restores every one of those barriers at once instead of chasing one leak at a time.
Scan both the engine and transmission modules first. Many 0B5 shift complaints are covered by Audi software updates, and some trace to the internal printed-circuit harness rather than the hard parts, so rule those out. Then check the clutch and pressure data against our DSG line pressure testing guide. Low or unstable pressure with a sound mechatronic points to internal leakage that this kit fixes. If the fluid is dark or smells burnt, read why DSG units overheat before you reassemble, so the same cause does not cook the new parts.
The kit is catalogued for the 0B5 (DL501) seven-speed in 2008-2014 Audi A4, A5 and Q5, the A6 and A7 from 2011, and the 2014 Porsche Macan. Engines on the list run from the 2.0L four-cylinder through the V6 and V8 versions. It is not for the later DL382 seven-speed used in newer A4, A5 and Q5 models, and it is not for transverse DSG units like the DQ250 or DQ500. Confirm the transmission code on your gearbox tag or send us your year and VIN before ordering. Browse every DSG and S tronic part we carry if you need other parts for the same rebuild.
This is a new kit that ships from the USA, so your Audi is not sitting on the lift waiting for parts.
| Fits | DL501 |
| Part type | Overhaul Kit |
| Condition | New |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No. It is the without-pistons overhaul kit, meaning the gaskets, seals, O-rings and sealing rings only. Clutch plates, steels and bonded pistons are sold separately. Reuse pistons only if the rubber is intact and well bonded.
Probably not. The kit is listed for the 0B5 (DL501) in 2008-2014 models. Later A4, A5 and Q5 generations moved to the DL382 seven-speed, which uses different parts. Check the transmission code on the case tag or send us your VIN and we will confirm.
The DL501 keeps the clutches and mechatronic on ATF in one circuit and the gears and differentials on hypoid gear oil in a separate circuit. After the rebuild, fill each side with its own fluid to the correct level.
Yes. Run the basic settings with the fluid between 40 and 100 C, the engine running and the lever in Park. That means clearing the start and stop counter, clutch valve calibration, then distance sensor calibration. Then cycle the ignition, clear codes and road test.
If pressure testing shows the clutch apply pressure falling off as the fluid warms, internal seal leakage is a likely cause and a reseal addresses it. If pressure is steady, look at software updates, the mechatronic and the clutch packs first.
