There is no Alto fog lamp in the original car's equipment list: the Std, LX and LXi were all built without front fog lamps. Owners who want them fit an accessory pair, either into a bumper opening or in a separate housing under the bumper.
Done well, a low mounted pair helps on misty winter mornings and in heavy rain. Done badly, it drains the battery, blinds oncoming drivers or melts wires. Here is how a workshop handles it.
Alto fitment card
- Status
- Original Alto and Alto LXi no longer sold new; Alto 800 and Alto K10 followed
- Tyre size
- 145/80 R12 on every variant (Std, LX, LXi)
- Wheels
- 12 inch steel on every variant, rim listed as 4J x 12; no factory alloy
- Tyre pressure (cold)
- Front 30 psi, rear 30 psi; check the driver door sticker
- PCD
- 4 x 100 mm, centre bore 54.1 mm (fitment listings)
- Wheel cap
- 12 inch
- Fog lamps
- Not fitted at the factory
Is there a bumper slot for an Alto fog lamp
Some owners of later cars report a blanked slot in the front bumper that only needs a plastic piece removed. Others were told by service staff that the bumper had to be cut. Kneel down and shine a light behind the bumper lip: a moulded round or oval recess behind a cover means a slot exists. If the face is smooth, you need a kit with its own housing or a bracket under the bumper.
Choosing an accessory pair
- Size: measure the slot, or the space under the bumper, before buying. A pair that is too large will not sit inside the lower bumper of this small car.
- Beam: a true fog lamp has a wide, flat beam with a sharp top cut off. Spot lamps that throw light far up the road are not fog lamps.
- Bulb type: halogen or LED. LED draws less current, which suits a small battery and alternator.
- Colour: white or selective yellow. Yellow cuts glare from mist a little.
Our LED fog lamp guide compares the two.
Wiring it the safe way
- Take power from the battery through an inline fuse, placed close to the battery.
- Use a relay so the dashboard switch only carries a small current.
- Pick a switch feed that goes dead whenever the lights are off, so the lamps can never be left burning overnight.
- Run wires away from the exhaust and hot engine parts, inside sleeving, and tie them every few inches.
- Ground each lamp to clean bare metal.
Most fog lamp kits sold at a parts shop include the relay, fuse and switch. Melted wires behind a bumper are the usual sign that someone skipped the relay.
Aiming the beam
Stop the car on flat ground facing a wall roughly 5 metres away. The top edge of each beam should sit slightly below the height of the lamp centre. If it lights the wall above that, oncoming drivers get dazzled in rain. Tighten the bracket bolt once aimed, as speed breakers knock lamps out of line over time.
Sensible use on the road
Save them for winter fog on the highway, monsoon cloudbursts and dusty stretches, driven slowly with low beam on as well. In clear air and slow city traffic keep them dark; the glare from low lamps bothers riders on two wheelers right in front of you. Never use them instead of headlamps.
Rules on extra lamps
What lamps a car may carry in India follows the Central Motor Vehicles Rules. Those say how lamps are fitted, and changes that alter the original lighting can draw attention at a check or create insurance questions. Keep lamps within the bumper area, aimed low, and avoid very bright spot or flashing lamps. The rules are published on the road transport ministry website, and ask your insurer before a large change.
Questions owners ask
Does the original Alto LXi have fog lamps?
No. The original Alto was not fitted with front fog lamps on any variant.
Do I need to cut the bumper to fit Alto fog lamps?
It depends on the bumper. Some later cars have a blanked slot; others need a separate housing or bracket. Shine a light up behind the bumper first.
Can extra lamps flatten the Alto battery?
Not if they are wired through a relay and fused, and switched only with the lights. LED lamps draw less current than halogen.
Yellow or white fog lamps for an Alto?
Either works. Yellow reduces glare in mist slightly; white matches headlamp colour. The beam shape matters more than colour.
Can I use fog lamps every night?
Keep them for mist, heavy showers and dust. On a clear night they mainly dazzle others while adding little for you.