The first round was completed Thursday despite a 45-minute weather delay.
Gonzalo Fernandez-Castano, who won the Italian Open earlier this year, carded a 66 in the opening round. He was joined in third place by Paul Broadhurst and Marc Farry.
Ernie Els, coming off a tie for 51st at the U.S. Open, posted a 67 Thursday. He stands alongside Andres Romero, Francesco Molinari, David Frost and Niclas Fasth, who finished fourth last week at the U.S. Open.
Lima, who has missed the cut in his last six starts, stumbled out of the gate with a bogey on the first. He atoned for that mistake with a birdie on three and made it two straight as he birdied the fourth.
'I hit a very bad drive on the first hole, but in a funny way I think that help relax me a little bit because I was a little stressed after the way I have been playing,' said Lima. 'I changed some things on my swing and I started the year very badly, missing a lot of cuts. A good round today is very good for me and my confidence.'
The 25-year-old drained a 12-foot eagle putt on the par-5 sixth to jump to 3 under. Lima parred his next three holes.
Lima converted back-to-back birdies chances from the 10th to get within one of the lead at minus-5. He jumped atop the leaderboard with an eagle from 6 feet out on the par-5 18th.
Jacquelin, who won the BMW Asian Open earlier this season, also started with a bogey, his coming on the third. He quickly got back into red figures with three straight birdies from the fourth.
The 33-year-old again carded three consecutive birdies from the eighth to get to 5-under. He moved within one of Lima thanks to a birdie on the par-4 13th. Jacquelin gained a share of the lead with a birdie at the last.
'Although I do enjoy the course and coming here, it is getting more difficult every year,' said Jacquelin. 'But if you put the ball in the fairway you will have chances and I managed to do that. Of course I also love coming to the BMW tournaments - you could say that I am a BMW man.'
Ten players -- including Paul Casey, Thomas Levet and Anders Hansen -- are tied for 11th at 4-under-par 68.
Defending champion Henrik Stenson struggled to a 1-over-par 73, that left him tied for 79th. His round was done in by a triple-bogey at the par-4 14th.