Team Lotus endured another troubled day at Jerez after mechanical issues once again sidelined Jarno Trulli during the second test of the F1 season.
The Italian had lost time with a mechanical issue on Thursday but rebounded with a more trouble-free morning on Friday as he evaluated a series of changes on the new T128.
However, shortly after lunchtime, Trulli was sidelined by a mechanical problem at the front end of the car that left him watching on for the remainder of the day with Lotus now hopeful that it can make up for lost time during the weekend's running.
“The morning went well for us,” Trulli said. “We managed to do a decent number of laps and put in a couple of quite long runs but then we had to stop with a mechanical issue which could not be fixed in time for me to go out again today. I would have liked to have had more running today but this is all part of testing a brand new car - we need to iron out the problems now so when the races start we have ironed out all the problems.
“Hopefully Heikki can put in some decent mileage over the next couple of days and really start to push the development of the car.”
Replacement parts for the car are due to arrive at Jerez overnight, with sporting director Dieter Gass admitting it had been a tough end to a promising day.
"We had a promising start to the day,” he said. “We found some interesting results from the setup work we did and have continued to learn more about the Pirelli tyres and how to maximise their grip levels on the car. Overnight we were able to fix the issues we had yesterday but unfortunately we had a mechnical problem at the front of the car that we were not able to fix in time today, but the spare parts we need are arriving from the factory tonight so we will be in good shape for Heikki to get into the car tomorrow."