Mercedes-Benz GLA Wing Mirror: Specs, Fitment & Common Faults
On the GLA, the mirror fold circuit genuinely uses just two wires with reversed polarity on related models — if a mirror folds one way but not the other, this rules out a broken wire, pointing to the switch instead.
Illustration for editorial purposes
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Mercedes-Benz GLA Wing Mirror: OEM Part Number
Mercedes-Benz GLA Wing Mirror: More Electronics Hiding Inside Than Most People Realise
What looks like a simple glass-and-plastic assembly on the outside is often anything but on the Mercedes-Benz GLA: its wing mirrors typically house folding motors, heating elements, indicator lights, and sometimes blind-spot sensors, so a "faulty mirror" isn't really one specific fault.
Mercedes-Benz GLA Wing Mirror: Driver's Side or Passenger Side? Sorting Out the Terminology
One thing worth getting right before you buy a Mercedes-Benz GLA wing mirror: terminology for left and right isn't applied consistently across UK retailers and parts catalogues, which trips up plenty of buyers. On a right-hand-drive UK car, the convention runs like this:
- Driver's side = right-hand (RH) = offside (OS) — the side closest to the centre of the road.
- Passenger side = left-hand (LH) = nearside (NS) — the side closest to the kerb.
Part listings may use any of these terms interchangeably — "RH mirror," "offside mirror," and "driver's side mirror" all refer to the same physical part on a UK-spec GLA. Double-check which convention your supplier is using before ordering, since a mix-up here is one of the most common reasons the wrong mirror turns up.
Mercedes-Benz GLA Wing Mirror: What It Does
Beyond the obvious job of rear visibility, modern wing mirrors on higher trims of the GLA often integrate turn signal repeaters, puddle lights, heating elements to clear condensation, and power-fold motors for tight parking spaces. Higher-spec versions may also house blind-spot monitoring sensors, making them considerably more expensive to replace than a basic mirror.
Mercedes-Benz GLA Wing Mirror: Generations, Derivatives, Colour & Mirror Adjustment
| Standard trims | Polar White, Cosmos Black, Mountain Grey, Iridium Silver; electric adjustment is standard on most trims from this generation, with heated glass increasingly common too — though the most basic specification may still be manual; confirm your exact trim |
|---|---|
| AMG 35 | electric adjustment and heated glass are standard on this trim |
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A Genuinely Important, Technical Finding Worth Knowing — Mercedes-Benz GLA Wing Mirror
If a mirror will fold in one direction but genuinely won't move the other way, this is genuinely worth knowing: the mirror fold mechanism uses just a simple two-wire circuit on related models, with the polarity reversed depending on fold direction. This means a broken wire can be genuinely ruled out if the mirror works in one direction but not the other, since a broken wire would prevent both directions from working — this instead points toward the switch itself.
It's also genuinely worth knowing that a battery disconnect or proper diagnostic reset has resolved intermittent auto-fold glitches in documented cases, where the setting shows as enabled but the mirrors stop responding to it.
Mercedes-Benz GLA Wing Mirror: Common Faults, DIY Difficulty & Aftermarket Advice
These are the same regardless of make or model — see our full Wing Mirror Guide for common faults to check for, confirming the exact spec against your VIN, how difficult this job is to DIY, and aftermarket advice.
More Mercedes-Benz Wing Mirror
The same part, covered across other Mercedes-Benz models.