Sweet smell in the cabin, windows fogging up
This page is for information only; a mechanic makes the diagnosis.
Likely causes
A sweet smell in the cabin with the heater on, an oily film fogging the inside of the windows and a damp front carpet suggest coolant is leaking from the heater core. The heater hose connections can leak as well.
Can I keep driving?
Keep an eye on the coolant level. If the fogging blocks your view, driving safety suffers; have it checked without delay.
Related parts
Tap a part to see listings of that type.
The same symptom can have different causes; have a mechanic look at the vehicle before buying a part and, if possible, get the part code from them.
Frequently asked questions
What are the likely causes of "Sweet smell in the cabin, windows fogging up"?
A sweet smell in the cabin with the heater on, an oily film fogging the inside of the windows and a damp front carpet suggest coolant is leaking from the heater core. The heater hose connections can leak as well.
Can I drive with "Sweet smell in the cabin, windows fogging up"?
Keep an eye on the coolant level. If the fogging blocks your view, driving safety suffers; have it checked without delay.
Which parts should be checked for "Sweet smell in the cabin, windows fogging up"?
Common causes include these parts: Heater Core, Heater Hose. The mechanic who sees the vehicle decides which one to replace.