Buy Synergy TD4 Tuning Box Kit + Mass Air Flow Sens Online
This is a tuning box for the TD4 engine, the 2.0 litre BMW diesel that went into the Freelander 1 and the Rover 75 among others. Synergy is a well known brand for this engine, and the kit usually comes with a mass air flow sensor as part of the package.
What a tuning box does. It plugs into the fuel rail and the boost sensor and changes the signals the ECU sees. The result is more fuel and more boost, which means more power and torque. On the TD4 this is a popular upgrade because the standard engine is a bit flat low down. A good tuning box wakes it up and makes it easier to drive, especially with a load on.
Why the mass air flow sensor comes with it. The MAF measures how much air is going into the engine, and the ECU uses that to work out fuelling. When the MAF is worn, it under reads, and the engine runs weak. A lot of TD4s are running around with a tired MAF and the owner doesn’t know, because there’s no fault code until it gets really bad. Fitting a new MAF with the tuning box means the fuelling is right to start with. If you fit a tuning box onto a worn MAF, you’re tuning around a fault.
Why Synergy. There are lots of cheap tuning boxes about, and most of them just dump in more fuel. The Synergy box is a proper unit with adjustable settings, and it’s been around long enough that people know how it behaves. It also has a reputation for being reliable, which matters when it’s plugged into your fuel system.
A few things to check before you buy:
-
Confirm it’s for the TD4. This won’t fit a Td4 in a Defender, because the Defender never used that engine. It’s for the Freelander and other BMW engined vehicles.
-
Which version. There are different Synergy boxes, and the settings differ. Check which one this is.
-
Whether it’s the full kit. Box, wiring, connectors and MAF. Ask what’s included.
-
MAF type. Confirm it suits your engine and the plug matches.
-
Condition. New or used. Ask.
-
Whether it’s been set up. If it’s use, ask what settings it was on and what vehicle it came off.
One thing worth saying. If your TD4 is down on power because of a boost leak, a clogged EGR or a worn turbo, fix that first. A tuning box on top of a fault just hides it, and you’ll be chasing problems later. Diagnose first, then tune.
Also. Some tuning boxes are insurance sensitive. Check with your insurer before you fit one, because an undeclared modification can void your cover. It’s a small thing to check and a big thing to get wrong.
You can buy this tuning box and MAF from landrovergenuinepart.com. Order online, or email us first if you want to confirm it suits your engine before you purchase. We’d rather check the details up front than have you send it back later.
When you get in touch, tell us your model, year and engine. That’s usually enough for us to confirm whether this is the right kit.
For availability, pricing and compatibility, contact us before ordering.
Website: landrovergenuinepart.com
Email: contact@landrovergenuinepart.com
jeannette –
“I was unsure what part we needed, and therefore contacted the company by e-mail. They responded within a couple of hours, giving us more information on the part needed, including a seal that I had forgotten about! Unusual for us to get that level of service from an online supplier. The part arrived in good time and good condition and was the right part for our car. I would highly recommend this supplier for any DIY work!”