Seat Ibiza Wing Mirror: Specs, Fitment & Common Faults

On the Ibiza, a genuinely bizarre but confirmed free fix resolves mirror auto-fold failures — resetting the electric windows, despite no obvious connection between the two.

Illustration for editorial purposes

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OEM Part Number: 6J1857507 (LH) / 6J1857508 (RH)

Accuracy note: Covers the fourth-generation Ibiza (6J / 6P, 2008–2017). Genuine housings carry the 6J1 857 507 / 508 stem (6J1857507D and 6J1857507H9B9 are common left-hand UK specs); the Mk5 (KJ, 2017 on) uses 6F1 857 507 / 508. The base number is shown; the factory adds suffix letters for the exact spec (heated, folding, memory, indicator), so quote your VIN when ordering a genuine unit. Mirror specification varies by trim — heated, power-folding, indicator, memory, puddle-light and blind-spot / lane-assist versions use different units and connector pin counts, so match the pin count and features of the mirror you are removing, or confirm against your VIN, before ordering. Aftermarket references are catalogue listings for this generation, not factory numbers.

Passenger side (LH / nearside), complete mirror	Genuine Seat: 6J1857507 (e.g. 6J1857507D / H9B9); Mk5: 6F1857507. Aftermarket: Van Wezel 4919807 (electric, heated, primed, 8-pin); Blic 5402-10-2002295P (to 07/2012, 5-pin); Ridex 50O0408 (5-pin); Alkar 6139803; manual Van Wezel 4919803; cable-pull Alkar 6164803. Mk5: Alkar 6141811, Van Wezel 4929807
Driver's side (RH / offside), complete mirror	Genuine Seat: 6J1857508; Mk5: 6F1857508. Aftermarket: Van Wezel 4919808 (electric, heated, primed); Abakus 3416M06 (electric, heated, black, 5-pin); manual Van Wezel 4919804; cable-pull Alkar 6165803. Mk5: Alkar 6142811, Van Wezel 4929808
Mirror glass only (aftermarket)	LH Alkar 6431803 / TYC 331-0064-1 (convex, heated); RH Alkar 6432803 (heated); Mk5: Alkar 6431811 / 6432811
Spec variants to match	S: manual or cable-pull; SE: electric heated 5-pin; FR / Cupra: 8-pin with indicator; 2012 facelift changed the indicator lens — check the build date.

A Genuine, Bizarre-but-Confirmed Free Fix for Mirrors That Won't Auto-Fold — Seat Ibiza Wing Mirror

If your mirrors have stopped auto-folding via the key fob, but still fold correctly using the manual dial or switch inside the car, this genuinely rules out a mechanical or motor fault — and points instead to a software glitch that many owners have resolved with a specific, well-documented trick that has no obvious logical connection to mirrors at all: resetting the electric windows. The procedure reported to work consistently: lower each window (doesn't need to be fully down), hold the window switch in the "up" position for a second or two after the window finishes closing, release, then hold "up" again for a further few seconds — repeating this for each window individually. Multiple owners confirm this resolves the mirror auto-fold fault entirely, despite nobody having a clear explanation for why resetting window position affects mirror behaviour.

Before trying this fix: first confirm the mirrors genuinely have the auto-fold feature at all — check for a fold icon on the mirror adjustment dial, since not every trim includes this function, and no icon present means your car simply doesn't have it rather than having a fault.

Seat Ibiza 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 Seat Ibiza: 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.

Before you buy: mirror specification varies significantly by trim — heated, power-folding, indicator-integrated and blind-spot-sensor versions are not interchangeable. Always confirm against your VIN before ordering.

Seat Ibiza Wing Mirror: Watch: Replacing It

🎬 Watch: Seat Ibiza FR wing mirror replacement

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Filmed on an Ibiza.

Seat Ibiza Wing Mirror: Driver's Side or Passenger Side? Sorting Out the Terminology

One thing worth getting right before you buy a Seat Ibiza 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 Ibiza. 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.

Seat Ibiza Wing Mirror: What It Does

Beyond the obvious job of rear visibility, modern wing mirrors on higher trims of the Ibiza 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.

Seat Ibiza Wing Mirror: Generations, Derivatives, Colour & Mirror Adjustment

Accuracy note: mirror covers colour-match the body — see notes below. Manual vs. electric adjustment and heated glass are general patterns by trim and era, not a substitute for confirming your exact derivative via VIN, since even within one generation the base specification can differ from what's typical for that era. This applies equally to the driver's side and passenger side mirror, which always match in adjustment type and heating.

Standard trims	Candy White, Desire Red, Magnetic Grey, Aurora Blue; 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
FR trim	Candy White is genuinely restricted to fleet orders only on FR, not available to retail customers; electric adjustment and heated glass are standard on this trim
Cupra derivatives	Ruby Red and Lumina Orange are popular Cupra-associated shades; electric adjustment and heated glass are standard on this trim

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Seat Ibiza 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 Seat Wing Mirror

The same part, covered across other Seat models.