Audi Q5 TFSI e is not pulling the full charger output: here is why that is usually fine

You plug into a 22 kW wallbox or a 50 kW DC fast charger and the Q5 TFSI e seems to ignore most of what is on offer. This is one of the most common questions for new PHEV owners, and almost every time the answer is the same: the car is the limit, not the charger.

The plain-English version

A charger advertises its maximum output. A car charges at whichever is lower: the charger's maximum or the car's own ceiling. For the Q5 TFSI e, that ceiling is fixed:

• AC only. The inlet is Type 2, there are no CCS DC pins. DC fast chargers will not work at all.
• Single-phase, up to roughly 7.2 to 7.4 kW (32 A). Plug into a 22 kW three-phase post and the car still pulls one phase, so 7.4 kW.
• A wallbox showing 11 kW or 22 kW is showing its number, not yours.

In other words, a 7.4 kW session on a 22 kW post is not a fault. That is the Q5 TFSI e behaving correctly.

When the car is pulling less than its own ceiling

If you are seeing well below 7 kW on a known-good single-phase 32 A supply, then look at:

1. In-car current limit. MMI has a reduced-current setting (often 10 A or 16 A) for weak circuits. If it was set for a trip, it can stay set at home.
2. Smart charging / battery target. If charging is capped at 80% or governed by a departure timer, the rate will taper.
3. Cable rating. A 16 A Type 2 cable forces the car to 3.6 kW even on a 32 A wallbox. The right tool is a 32 A single-phase Type 2 cable, such as the Voldt cable for the Audi Q5 TFSI e.
4. Wallbox load balancing. Shared circuits can dynamically reduce your bay during peak household demand.
5. Temperature. Cold packs ramp up gradually for the first 15 to 30 minutes.

Bottom line

The Q5 TFSI e is capped at ~7.4 kW single-phase. A bigger charger does not change that. If you are getting around 7 kW from a 32 A wallbox, the car is healthy. If you are getting noticeably less, check the in-car limit and the cable rating before suspecting the charger.