Dacia Sandero Alternator: Specs, Fitment & Common Faults
On the Sandero, a real saga saw multiple alternators replaced over weeks before the actual fault turned out to be simply dirty wires.
Illustration for editorial purposes
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A Genuinely Valuable, Real Saga Worth Knowing Before Replacing the Alternator
If you're facing an intermittent alternator fault, this real, documented saga is genuinely worth knowing about before authorising expensive parts replacement: one owner went through multiple alternators — an incorrect one fitted first, then a correct replacement ordered from France with a multi-week wait, twice — with the fault persisting throughout. The eventual, genuinely simple root cause: dirt on the wiring connections to the alternator. Once cleaned, the fault was resolved completely, with no further parts needed. If you're chasing an intermittent alternator warning that keeps returning despite replacement parts, it's genuinely worth insisting the wiring and connections are properly cleaned and inspected first.
It's also worth knowing that some drive belt and alternator noise on a genuinely new car can simply be normal — components can "sing" slightly when new before settling in, and this alone isn't necessarily a sign of a fault.
Dacia Sandero Alternator: Often Blamed on the Battery Instead
On the Dacia Sandero, a weak battery and a failing alternator produce almost identical symptoms at first — dim lights, slow starts, a car that won't hold charge — which is exactly why so many people replace the battery, only to be back at the garage a few weeks later with the real culprit untouched.
Dacia Sandero Alternator: Watch: Replacing It
Renault-badged Sandero (pre-Mk3); nothing found for the 2020+ car
OEM Part Number: 231007769R (as quoted in catalogue listings — confirm via VIN) — aftermarket alternators Bosch 1 986 A01 371 / Lucas LRA04628
| Alternators (aftermarket) | Bosch 1 986 A01 371 (140 A, freewheel pulley, 6 ribs, 52 mm, new, plug 181, excludes vacuum pump, double pivot lever); SEG Automotive F000BL08ZH (150 A, freewheel pulley, 7 ribs, 49 mm, new, original-equipment maker's unit, 182.1 mm long); Lucas LRA04628 (150 A, freewheel pulley, 7 ribs, 49 mm, reman, COM/LIN2C plug, £50.24 surcharge); Lucas LRA03871 (90 A, freewheel pulley, 7 ribs, 49 mm, reman, plug 0293, £50.24 surcharge); AS-PL A01033S (150 A, freewheel pulley, 7 ribs, 48.5 mm, new, plug PL_2801); AS-PL A01033 SEG-type (150 A, freewheel pulley, 7 ribs, 49 mm, new, plug PL_2801); AS-PL A3118 (125 A, freewheel pulley, 6 ribs, 55 mm, new, plug PL_2401); Walker WAL01456 (150 A, freewheel pulley, 7 ribs, 49 mm, new, COM/LIN2C plug, £50.24 surcharge) |
|---|---|
| Outputs & variants | The 1.0 TCe, TCe ECO-G and SCe petrol engines take the 150 A, 7-rib, 49 mm SEG-pattern unit with the COM/LIN2C plug; a 120 A version of the same family (DRI 2303861202) is listed for lower-specification cars; 125 A and 150 A 6-rib, 55 mm units and the 140 A Bosch 52 mm unit serve the 1.5 dCi diesel; 90 A 7-rib units are a low-output carry-over. |
| Genuine (OE) numbers quoted | 231007769R (SEG Automotive F000BL08ZH, 150 A); F000BL08B4 (AS-PL A01033S, 150 A); F000BL08E9 (AS-PL A01033 SEG-type, 150 A); SG12B105 (AS-PL A3118, 125 A). |
| Fitment notes | Rib count separates the fitments, with 7 ribs on the TCe petrol and 6 ribs on the diesel-pattern units, and both use freewheel pulleys. Bosch and Ridex references exclude the vacuum pump. Reman Lucas and DRI units carry £40.19 to £50.35 surcharges, and the Walker and Autoelectro new units also carry a core charge (£50.24 to £125.59). |
The Sandero shares its CMF-B platform with the Renault Clio, so it's worth checking parts listings under both car names. Alternator output varies by engine (SCe, TCe, or Bi-Fuel LPG versions), so confirm your exact engine before ordering.
Dacia Sandero Alternator: What It Does
The Dacia Sandero's alternator generates electricity while the engine runs, charging the battery and powering the car's electrical systems directly. A healthy alternator means the battery is mostly there for starting the engine and covering brief demand spikes — not for actually running the car's electronics on its own.
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Dacia Sandero 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 Dacia Alternator
The same part, covered across other Dacia models.