P0000 on Audi
No Fault Found / ISO-SAE Reserved
P0000 on Audi vehicles indicates no fault found / iso-sae reserved. Au7o has documented this code across 1 Audi model — most commonly on S5. P0000 is a reserved placeholder in the ISO/SAE code range meaning "no diagnostic trouble code reported." It is not a real defect code - a module or scan tool returns it when no fault is stored, when a memory slot is empty, or as a filler in a data record. It is important to read it correctly: if the malfunction indicator lamp is actually illuminated and a generic scanner returns only P0000, the far more likely explanation is that the tool could not communicate with the module that holds the real fault, not that the vehicle is healthy. On VW/Audi this is common because generic OBD-II tools cannot reach most manufacturer-specific modules - a VAG-capable tool (VCDS/ODIS/OBDeleven) is needed to see the actual stored codes.
Common Causes of P0000
- •Genuinely empty fault memory - nothing is wrong
- •Scan tool could not establish communication with the control module
- •Generic OBD-II scanner used on a manufacturer-specific module (very common on VW/Audi)
- •Fault memory cleared immediately before the scan, before any monitor could run
- •Placeholder entry inside a longer diagnostic data record
P0000 on Audi by Model
Audi S5(1 issue)
- 2018 S5 3.0L Mechanical Coolant-Pump Fault P000000/33688 - Diagnosis Required2018
Audi TSB 2058890/4 applies to 2018 S5, S5 Cabriolet and S5 Sportback vehicles when the instrument cluster displays “Switch off the engine and check coolant” and the engine control module stores P000000 with symptom code 33688. The code indicates a possible malfunction of the vacuum-switchable mechanical coolant pump on the 3.0L V6 TFSI EA839. The bulletin does not support the former 2.9T label, a universal internal coolant leak, coolant migration into the brake booster or wastegate actuators, or a fixed failure mileage.
Looking for P0000 on a different make?
View P0000 across all makes →Frequently Asked Questions
What does P0000 mean on Audi?▼
P0000 stands for "No Fault Found / ISO-SAE Reserved." P0000 is a reserved placeholder in the ISO/SAE code range meaning "no diagnostic trouble code reported." It is not a real defect code - a module or scan tool returns it when no fault is stored, when a memory slot is empty, or as a filler in a data record. It is important to read it correctly: if the malfunction indicator lamp is actually illuminated and a generic scanner returns only P0000, the far more likely explanation is that the tool could not communicate with the module that holds the real fault, not that the vehicle is healthy. On VW/Audi this is common because generic OBD-II tools cannot reach most manufacturer-specific modules - a VAG-capable tool (VCDS/ODIS/OBDeleven) is needed to see the actual stored codes. On Audi specifically, this code is documented across 1 model.
What causes P0000 on Audi vehicles?▼
Common causes on Audi: Genuinely empty fault memory - nothing is wrong, Scan tool could not establish communication with the control module, Generic OBD-II scanner used on a manufacturer-specific module (very common on VW/Audi), Fault memory cleared immediately before the scan, before any monitor could run, Placeholder entry inside a longer diagnostic data record. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0000 on a Audi?▼
Repair costs vary widely depending on the root cause and specific Audi model.
Which Audi models have P0000 documented?▼
Au7o has documented P0000 on 1 Audi model: S5.