Hi Luis, I used Archoil AR2810 Mass Air Flow Sensor Cleaner - 300ml Aerosol from Amazon. It did work well for a few days, but as with your car, mine is also high mileage (112000 miles) and pretty sure it had never been cleaned before. I bought a new one off eBay & fitted that..the difference was huge, so clearly there was a problem with the old sensor, unsurprising given its age & mileage. Probably worth investing in a new sensor given the cost of the spray (£10.00)over the cost of a new sensor (£45.00) & the time involved in dismantling & reassembling.
Hi, Ian. Thank you for your advice.
£45 is a great price!
Did you buy an original (Bosch) one?
Don't get me wrong. My car pulls very well. It's very strong between 1500-3500 rpm, but after that... it's a bit sluggish. Absolutely no smoke, which leads me to think the mass sensor isn't measuring the right amount of air and, because of that, the engine doesn't get enough diesel. At least, this is my way of seeing it, with my limited knowledge.
On the other hand, I can rev it to 4600 rpm in 5th gear, so it can't be too bad.
But I guess it has to have some turbo wear, at least, since I push hard for it, every day, for 16 years.
Ian, with 112000 miles, yours is a baby.