smartcarofamerica.com/threads/coolant-leak.162915

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Forum thread: Coolant leak

smartcarofamerica.com/threads/coolant-leak.162915 · p. 1 · Applies to: 451

Source: smartcarofamerica.com Topic: coolant leak / water pump hose Models discussed: 451 Language: en Solution status: unclear

Problem: After replacing the Coolant Temp sensor and bleeding the coolant, a hose connected to a component beneath the alternator popped off during a test drive, causing heavy smoking. The user doesn't know what the hose is connected to.

Solution: The part is labeled PA66 GF30 and connects to the water pump, held by a single bolt. A suggested repair is to drill and tap out the white portion and use a threaded tubing nipple to replace it, using Teflon tape on the thread.

Key facts: - 2008 Smart 451 (Fortwo) - Hose connection located beneath the alternator - Part labeled PA66 GF30 - Larger end connects to the water pump, secured with a single bolt - White piece may have broken off in the small attached hose - Alternative repair: drill/tap and use threaded tubing nipple with Teflon tape