Renault Twingo Alternator: Specs, Fitment & Common Faults
On the Twingo, a genuine, documented fault confirms the alternator pulley can literally split — plus a real consumer grievance about an inconsistent recall.
Illustration for editorial purposes
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OEM Part Number: 231003071R (genuine alternator — confirm via VIN) — aftermarket alternators Bosch 0 986 085 170 / Hella 8EL 011 713-661
| Alternators (aftermarket) | Bosch 0 986 085 170 (90 A, freewheel pulley, 7 ribs, 49 mm, remanufactured exchange, plug PL381, without vacuum pump, £24.86 core); Hella 8EL 011 713-661 (90 A, freewheel pulley, 7 ribs, 49 mm, new); Lucas LRA03871 (90 A, freewheel pulley, 7 ribs, 49 mm, remanufactured, plug 0293 / COM-LIN2C, £50.24 core); Lucas LRA04556 (90 A, freewheel pulley, 7 ribs, 49 mm, remanufactured, plug 0293, £30.14 core); AS-PL A0710S (90 A, freewheel pulley, 7 ribs, 49 mm, new, plug PL_2801); AS-PL A0598S (90 A, freewheel pulley, 7 ribs, 49 mm, new, plug PL_2401); Ridex 4G0674 (90 A, freewheel pulley, 7 ribs, 49 mm, new, COM/LIN2C, without vacuum pump) |
|---|---|
| Outputs & variants | 90 A on a 49 mm 7-rib freewheel pulley is the standard fitment for the 0.9 TCe and 1.0 SCe engines. 120 A and 150 A units also appear, on 49-50 mm 7-rib or 55 mm 6-rib pulleys. All units are freewheel. |
| Genuine (OE) numbers quoted | AS-PL A0710S for F000BL0410; AS-PL A0598S for F000BL0456; AS-PL A0877S for F000BL07AS; AS-PL A0826S for F000BL07CF; AS-PL A3563S for TG12C164; AS-PL A3565S for FG15T071 |
| Fitment notes | The 90 A unit is a small 7-rib alternator shared with the Smart Forfour; the two Lucas references differ by plug variant, so compare the connector on the old unit. Bosch and Ridex units ship without the vacuum pump. Exchange cores run from £24.86 (Bosch) through £30.14 (Lucas LRA04556, Ridex Reman) to £50.24 (Valeo, Lucas LRA03871). |
A Genuine, Documented Fault: The Pulley Can Literally Split — Renault Twingo Alternator
A genuine technical bulletin from Autoelectro (a major alternator remanufacturer) confirms a specific, documented fault affecting related Renault models — a tensioning issue in the drive belt system that can cause the alternator pulley itself to physically split, triggering the alternator warning light and producing excessive noise from the drive belt area. This is worth knowing as a genuine, confirmed mechanical failure mode rather than simple wear.
A genuinely useful diagnostic technique worth trying: with the auxiliary belt removed, spin the alternator and any other free pulleys by hand — genuine roughness or grinding indicates worn bearings specifically. It's also worth knowing that alternator bearings can seem fine when spun freely by hand but still be noisy once the sideways pressure from the drive belt is reapplied.
Renault Twingo Alternator: Often Blamed on the Battery Instead
On the Renault Twingo, dim lights, slow starts, a battery that won't hold charge — these symptoms point equally to a weak battery or a failing alternator, and that overlap is why so many replacements target the wrong part first, with the real problem only surfacing weeks later.
Renault Twingo Alternator: Watch: Replacing It
French; generation not stated, may be Twingo 2 rather than the rear-engined Mk3.
Renault Twingo Alternator: What It Does
Electricity generation while the Renault Twingo's engine is running is the alternator's job, charging the battery and directly powering the electrical systems. When it's working properly, the battery mostly just handles engine starting and short demand spikes, not day-to-day electrical load.
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Renault Twingo Alternator: Warning Signs, DIY Difficulty & Aftermarket Advice
These are the same regardless of make or model — see our full Alternator Guide for symptoms to watch for (plus a genuinely useful two-minute test to confirm it's not the battery instead), confirming the right amperage and fitment against your VIN, and which brands are worth trusting.
More Renault Alternator
The same part, covered across other Renault models.