Replacement 0B5927156E TCU conductor plate for Audi A4, A6 and VW Tiguan with the 0B5 DL501 S tronic dual-clutch transmission.
When an Audi with the seven-speed 0B5 S tronic suddenly coasts in neutral, will not take Drive or Reverse, flashes every gear on the cluster or stores implausible speed sensor and control module faults, the problem is often the electronics, not the clutches. This is the transmission control unit with its conductor plate, OE reference 0B5927156E, for the 0B5 gearbox, known in the repair trade as the DL501. It replaces the electronic half of the mechatronic and leaves the hydraulic valve body in place.
The DL501 shifts with two wet clutches: one carries the odd gears and the other carries the even gears and reverse, while hydraulic actuators preselect the next gear before the handoff. The mechatronic has two halves. The valve body holds the spools, regulator and solenoid bores. The conductor plate sits on top of it and carries the control unit, the circuit tracks that power each solenoid, and the sensors that report shaft speeds, selector positions and pressures. The control unit uses those signals to trim clutch pressure continuously, so a cracked track, a failing sensor or a heat-damaged board shows up as a car that suddenly does not know which gear it is in.
This is an expensive part and a software problem can look like a hardware failure. Transmission Digest documented 0B5 cars with a severe shock just before stopping that came from heat-raised clutch adaptation values, not a broken part; resetting the adapts and loading the latest software fixed it. So reset adaptations and check the software level first. Then look at live data: if a speed or position signal reads nonsense while the car is moving, or the control module stores internal faults that return after clearing, the conductor plate is the likely cause. Mechanical solenoid faults with good electrical readings point at the valve body instead, which is a separate repair. Our DSG pressure testing guide shows how to separate hydraulic faults from electronic ones, and the DSG overheating guide explains how heat kills these units in the first place.
The listing fitment is the 0B5 seven-speed S tronic in 2011-on Audi A4 and A6, and it also lists the 2011-on Volkswagen Tiguan. The 0B5 is a longitudinal transmission built for quattro Audi models; front-drive A4 and A6 cars of this era used a CVT, and most Tiguans use a transverse DSG, so check your transmission code before ordering. The DL501 control units changed across revisions and are not interchangeable between them. Match 0B5927156E to the label on your old plate, or send us your year and VIN and we will check it. The hydraulic half is sold separately as the remanufactured DL501 valve body, and every dual-clutch part we stock is on the DSG and S tronic collection page.
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Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No. It is the control unit and conductor plate, the electronic half. The hydraulic valve body is not included and is sold separately.
No. It ships blank and must be coded with the correct software, then the clutch and gear adaptations must be run with a factory-level tool before the car will drive properly.
Only if the car has the 0B5 seven-speed S tronic. Front-drive A4 and A6 models of this period generally used a CVT, which takes different parts. Check the transmission code or send us your VIN.
Not necessarily. On the 0B5 that complaint is often caused by heat-raised clutch adaptation values. Reset the adaptations and update the software first; if it keeps returning, look at the valve body clutch cooling circuit.
Compare 0B5927156E to the label on your old control unit. DL501 plates are revision-specific and are not cross-compatible.
New mechatronic seals, the filter and pan gasket, and fresh dual-clutch fluid in the mechatronic circuit.
