Genuine Bosch Injectors and Salty Roads
• Sivert • 14 views • 3 min read
I finally got hold of four original Bosch 0261500037 injectors in near perfect condition. The inscription dates them to 2012, and the only thing missing is the VW/Audi logo. Our guess is that they were surplus units never stamped for OEM distribution. Either way they are genuine Bosch. The old ones were dated 2009, which is odd for a 2012 car, but the factory may have been using up leftover stock. The new injectors came with O-rings, but I used the fresher ones I bought a few months back during the engine service.
I have not actually installed them yet, because I found a new problem with the manifold. The previous owners stripped the threads where the throttle body attaches, so it sits loose. There is no point fitting new injectors until that is fixed or the manifold is replaced. Given how much questionable work has been done on this car, none of this is a surprise.
I also found a small vacuum leak. A few months ago I replaced the PCV with the "N" revision, which is supposed to fix lean idle issues, since some people think the "P" revision causes them. Ever since, the car has idled strangely. I do not know whether the PCV is faulty or whether the loose throttle body is to blame. Until the manifold is sorted I will not know.
Living in Norway means a lot of salt on icy roads, which destroys the underside and the wiring. I have been power washing with hot water at around 40°C to flush the salt and grime out. Tectyl is the other option for protecting the underbody, reapplied every 2 to 3 years. I have not done it yet but I am seriously considering it. Ideally you sandblast any existing rust first so the Tectyl goes onto clean metal.
Away from the engine, I am still hunting for the original Edition 35 side badges. A Swiss Volkswagen shop says they can order them from the factory. If that comes through I will finally have the right look. Otherwise I may have to commission replicas and try to match the OEM chrome.
With the intake manifold off I had a look at the valves. We cleaned them a few months ago and there is hardly any new buildup after 3,000 to 4,000 km, so that is one thing off the list. Now I just need to fix the loose throttle body and get these injectors in.
