1989 Mercedes Benz 300se

1989 MERCEDES BENZ 300SE
Avatar
EFIREDOG
  • MEMBER
  • 1 POST
Heater problem
1989 Mercedes Benz 300se 6 cyl Two Wheel Drive Automatic

Heat blows cold air even when temperture control is on maximum setting.
Jan 17, 2009 at 1:36 PM
Avatar
BLUELIGHTNIN6
  • ✓Experienced Mechanic
  • 16,542 POSTS
Check coolant level to ensure it is full. If this is okay, feel 2 heater core hoses to ensure both are warm. If only one is warm, this indicates a clog in the heater core.

Post results of inspections and I will follow up.




Thanks for using 2CarPros.com!
Jan 17, 2009 at 1:38 PM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle