Datsun mi-DO, 1.6 (87 HP), A4
- Manufacturer — AVTOVAZ
- Year of issue — 2015
- In operation “Behind the wheel” – since May 2015
- Mileage at the time of the report – 105,500 km
During a long journey covering about 105,000 kilometers, the expansion tank in the cooling system ruptured. A quick stop at a nearby auto parts shop revealed broad availability and reasonable pricing. The mi-DO uses a Kalina model expansion tank. This substitution is common because the two cars share similar cooling system components and connectors.
There are two variants to consider: standard and reinforced. The primary difference lies in the plastic grade and the presence of extra transverse stiffeners that bolster durability. Prices typically range from 300 to 700 rubles, with the cork valve sold separately for around 250 rubles. For buyers tracking cost, it helps to confirm compatibility with the specific Kalina tank part number and ensure the clamps and hoses are in good condition before installation.
Due to the compact engine bay layout, swapping the tank quickly is challenging. The battery obstructs access to the fuse box and the lines feeding the ABS module, so a DIY swap may not be practical for most owners. In colder conditions, attempting the replacement alone can be risky. A nearby service shop quoted about 1,000 rubles for the labor, and the technician’s candid assessment of the design added a few extra minutes to the overall time and cost—noting that the layout is not particularly forgiving for on‑the‑spot repairs.
The experience underscores a broader observation: when the cooling system changes are necessary on this platform, planning ahead for a professional install can save time and prevent accidental damage to nearby components. This is especially relevant for drivers who rely on the vehicle for daily commutes or longer trips where unscheduled maintenance would be disruptive.
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