Mercedes A Class wheel fitment — Br177
Mercedes A Class wheel fitment
Mercedes A Class wheel fitment comes down to two things: the factory hub spec, and how far the aftermarket width and offset can move from it. Both are here for the Mercedes A Class Br177 (2018–2022).
| Bolt pattern (PCD) | 5x112 |
| Centre bore | 66.6 mm |
| Bolt / thread | M14x1.5 (bolts) |
| Wheel-bolt torque | 125 Nm |
| Seat type | radius |
| Factory setup | square |
| TPMS | direct |
| Run-flat | Yes |
Aftermarket wheel sizes — read per position:
| Position | Width | Offset |
|---|---|---|
| Front | 6.5J–8.5J | ET35–ET50 |
Width and offset move together: roughly 8 to 10 ET more for every extra 1J keeps the wheel inside the arch. Final offset and any spacer come from the fit-check.
Overview
The Mercedes-Benz A-Class W177 is a subcompact executive car manufactured by Mercedes-Benz since 2018. It marks the brand's entry-level vehicle and was introduced as both a five-door hatchback (W177) and sedan (V177), making it the first time the A-Class has been offered in these body styles. The fourth generation model is notable for its market expansion into the United States and Canada, representing a significant shift from previous generations which were primarily sold in Europe. This generation features advanced technology and improved dimensions compared to earlier models.
UK popularity & demand
Based on DfT VEH0124 vehicle-parc data (2025), there are approximately 389,742 Mercedes A Class on UK roads, placing it in the top 1% of car models by volume across our fitment database.
With that many on the road, Mercedes A Class wheel fitment is a spec fitters see constantly. We keep it current for that reason.
Source: DfT/DVLA licensed-vehicle statistics (VEH0124), matched to the AIWheelTech fitment database.
History & notable variants
The W177 generation of the A-Class was launched at the Frankfurt Motor Show in 2018, marking a new era for Mercedes-Benz's entry-level offering. It is designed to compete with premium compact cars while providing luxury and technological advancements. Notable features include an updated platform, enhanced safety systems, and improved fuel efficiency. The sedan variant (V177) was introduced alongside the hatchback in 2018, expanding its appeal.
Body styles & production
| Produced | 2018–2022 |
Trim levels
Factory colours
Reliability & owner notes
- Pros: Advanced technology, improved dimensions, luxury features, market expansion into North America
- Cons: Limited availability of performance variants compared to previous generations
- Common issues: No significant reliability issues reported