Heater plug light and loss of acceleration

2001 Renault Clio 1.4 petrol Manual
Car: Renault Clio
Year: 2001
Variant: 1.4 petrol Manual
Categories: Running Rough, Starting & Power Loss
After driving the car for about 10 mins, the heater light on the dash comes on. It will go off when I switch off, but after restarting,it will come on again after about 10mins. Next prob, whilst the heater light on, if I'm accelerating up to about 70mph, the car seems to tire and struggles to increase speed above 60.
I have also noted that the engine shakes as if it is misfiring . New plugs, oil and filters were fitted recently although the problem existed before the service was done.
Problem added: Jun 23, 2014 (9 years ago)
Duplicate post yeah?
Answered Jun 24, 2014 (9 years ago)

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