Quick answer
White Smoke from Car Exhaust: the most common causes are head gasket failure allowing coolant into combustion chamber, egr cooler cracked, worn turbocharger seal leaking coolant into exhaust side. Metre Per Second (KPHB, Hyderabad) diagnoses the exact fault and repairs it same-day — typical work runs ₹15,000 – ₹45,000, with free pickup and drop across Hyderabad, OEM-grade parts and a 1-year warranty. Call +91 8555824915.
What causes White Smoke from Car Exhaust?
These are the faults we most often find behind this symptom on cars driven in Hyderabad's heat and stop-go traffic:
- Head gasket failure allowing coolant into combustion chamber (most serious)
- EGR cooler cracked – coolant mixing with exhaust and intake
- Worn turbocharger seal leaking coolant into exhaust side
- Injector overfueling diesel engine (lighter white smoke at startup)
- Cold weather condensation from exhaust (harmless, clears in 1–2 minutes)
Repairs & indicative pricing (INR)
| Repair | Indicative price |
|---|---|
| Head gasket inspection & replacement | ₹15,000 – ₹45,000 |
| Coolant pressure & combustion gas test | ₹1,500 – ₹3,000 |
| EGR cooler inspection/replacement | ₹6,000 – ₹20,000 |
| Turbocharger seal inspection | ₹2,000 – ₹6,000 |
| OBD diagnostic scan | ₹500 |
Final price depends on diagnosis. We share a written estimate before any work — no surprises. Free pickup & drop across Hyderabad, OEM-grade parts and a 1-year warranty.
Frequently asked questions
White smoke from my car exhaust doesn't stop in Hyderabad — is the head gasket blown?
Persistent white smoke (not just cold-morning condensation that clears after 2 minutes) is a serious warning. In Hyderabad summer heat, head gaskets under thermal stress are more prone to failure. Symptoms of head gasket failure: sweet-smelling white smoke, coolant level dropping with no visible leak, milky oil on dipstick, overheating. Metre Per Second performs a combustion gas test (₹1,500) to confirm head gasket integrity without dismantling the engine.
Related car problems we fix in Hyderabad
Why Hyderabad drivers choose Metre Per Second
- Factory-grade diagnostics — we read the real fault, not just a generic code.
- Free pickup & drop across all of Hyderabad — KPHB, Kukatpally, Miyapur, Hitech City, Gachibowli, Banjara Hills, Secunderabad and more.
- 1-year unconditional warranty on parts and labour.
- Transparent, written estimates — typically 30–50% below authorised dealers.