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Temperature Issue on the Iveco Daily

Model: IVECO Daily MK 4 - Years: 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
Part: Checks and maintenance

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Video tutorial

The issue highlighted in the video regarding the Iveco Daily 130 is the P1000 error, related to the coolant pressure sensor in the water reservoir, which is contaminated with engine oil. The likely cause is a failure of the oil/water intercooler (oil radiator integrated into the main radiator).

Oil enters the cooling circuit through an internal crack; the reservoir cap is faulty; it does not regulate the pressure, causing leaks and overheating.

The thermostat or temperature sensor may be faulty, worsening thermal control. Necessary interventions include a complete system clean (draining the radiator, engine, and ducts with specific products to remove residual oil) and replacing critical components - Test the water pump.

The estimated cost is not low: a new intercooler/radiator costs between £425 and £510, system cleaning is no less than £170, and labour requires at least 6 hours of work.


Posted on 24 March 2026 by ScegliAuto


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